Eczema is a group of long-term conditions in which the skin barrier leaks moisture and the immune system in the skin overreacts. Atopic dermatitis is the most common kind. The result is skin that is dry, itchy and inflamed, in flares that come and go. It is controlled rather than cured, and most of it responds well to treatment used properly. Ringworm is a common fungal skin infection that spreads outward in a scaly ring with a raised edge. There is no worm involved. It clears with antifungal treatment, as long as the treatment is used for long enough and steroid creams are kept away from it.
The same eight facts on every condition comparison.
It is a recurring inflammatory condition.
Atopic eczema involves a vulnerable barrier and an itch–scratch cycle.
Several factors reinforce each other.
Dryness, irritants, inflammation and scratching feed one another.
It is not about cleanliness.
Vigorous cleansing can make eczema worse.
Care has two parts.
Emollients protect the barrier, while anti-inflammatory treatment settles active flares.
It is a fungal skin infection.
Tinea corporis is dermatophyte infection of body skin.
The ring is a clue only.
It may be absent, especially after steroid creams.
It is an umbrella term.
Related infections affect the scalp, nails and other sites.
Testing guides treatment.
Scrapings or culture confirm infection; scalp and nail infections need different care.
Atopic dermatitis Long-term, starts in childhood.
Infant facial eczema Inflamed, rough patches affect the cheeks.
Hand eczema Dry, cracked or blistered hands.
Dyshidrotic eczema Tiny itchy blisters on fingers and palms.
Nummular eczema Coin-shaped patches.
Contact dermatitis Triggered by something touching the skin.
Tinea corporis (body ringworm) Rings on the body and limbs.
Tinea capitis (scalp ringworm) Generated illustration. Scaly patches with hair loss.
Tinea cruris (jock itch) Jock itch in the inner thighs.
Tinea pedis (athlete’s foot) Athlete's foot.
In atopic dermatitis, a less effective skin barrier and overactive immune signals reinforce each other. Water escapes more easily, and itching and scratching can add damage and prolong inflammation.
Dermatophyte fungi grow in the keratin of the outer skin and spread outward. Inflammation and scale often concentrate at an expanding border, while the center may look clearer.
Eczema often affects the inner elbows and backs of the knees. In adults, the hands, face and neck may also be involved.
Eczema. Often starts in infancy or childhood, though it can first develop in adulthood.
Ringworm. Can occur at any age after exposure to an infected person, animal or contaminated material.
Eczema comes from a weak skin barrier combined with an overactive immune response. Moisture escapes, irritants get in and the skin becomes itchy and inflamed.
Ringworm is a fungal infection of the skin's outer layer. It isn't caused by a worm; the name comes from the ring-shaped rash.
Changes in the filaggrin gene, which helps build the skin barrier, are a major risk. Eczema often runs in families with asthma and hay fever.
Evidence labels come from each condition’s own treatment list.
The one steroid you can buy without a prescription, and the only step in this routine that treats rather than protects. A thin layer twice a day on the itchy patches, for up to two weeks at a time. Mild enough for the face and the eyelids for a few days, and too mild for skin that has gone thick and leathery.
A spray that lowers the amount of staph sitting on eczema skin, aimed at step four rather than at the inflammation itself. It does not sting, which makes it easier on children than a bleach bath. It is a helper for skin that keeps getting infected, not a treatment for the flare.
Taken at bedtime it helps you sleep through the itch, which is the honest reason to use it. It does not treat the itch of eczema — that comes from immune signals rather than histamine — so a non-drowsy antihistamine in the daytime does very little. Ask your doctor before using one in a young child.
Plain ointment, over damp skin, as the moisturizer rather than beside it. It seals water in rather than adding any. It is the one thing that is safe to put on eyelids as often as you like, and on a weeping flare it is usually the best thing on the shelf.
An old remedy that holds up. It calms itch and helps the barrier, in a cream or in a lukewarm bath. It will not clear a flare, and it is a sensible everyday moisturizer for skin that is calm but easily set off.
A moisturizer with urea in it, for patches that have gone thick and leathery from years of scratching. 10% and above. It stings on raw or weeping skin, so it belongs to the dry, cracked stage rather than the sore one.
The fats that hold the outer wall of the skin together, and the ones eczema skin is short of. A ceramide cream used daily reduces how often flares happen and how much prescription cream you end up needing over a year. It will not clear an active flare on its own — it is the maintenance step, used on calm skin as much as on sore skin.
The most effective cream you can buy for ringworm on the body, and it kills the fungus rather than just stopping it growing, so the course is shorter — often one to two weeks. Take it a couple of centimetres past the visible edge. It does not work on the scalp or the nails, where the fungus sits out of reach.
The familiar azole creams, sold everywhere and cheap. They work well on body ringworm, but they stop the fungus growing rather than killing it, so they are used twice a day for two to four weeks and for one to two weeks after the skin looks clear. Stopping at the point it looks better is the usual reason it returns.
An older antifungal, most often sold as a powder or spray. It works on body and foot ringworm but more slowly than terbinafine, and it is weaker on stubborn patches. Its real use is keeping the feet and shoes dry after treatment, since untreated feet are what reseed the rest of the skin.
It does have some antifungal activity, and it is the home remedy people ask about most. The trouble is that it clears ringworm far less reliably than a pharmacy cream, it commonly irritates the skin, and weeks spent on it are weeks the patch keeps spreading. There is no reason to choose it over a proven cream that costs about the same.
Triamcinolone. A mid-strength steroid ointment, twice a day for one to two weeks. It is the usual next step when hydrocortisone is not enough. Not for the face, the eyelids or the armpits - the skin there is thin already.
Protopic. An ointment that calms the same immune signal a steroid does, without being one. It does not thin skin, so it suits the eyelids, the face and the folds, and it can be used twice a week to stop flares coming back. Expect stinging for the first week or so.
A low-strength steroid made for thin skin - the face, the eyelids, the folds, and young children. Twice a day for a week or two.
Eucrisa. A steroid-free ointment for mild to moderate eczema, approved down to three months old. It burns on application for some people, which is the main reason it gets abandoned.
Elidel. The gentler cousin of tacrolimus, in a cream rather than an ointment. Suited to mild eczema on the face and the eyelids. It stings less, and it does less.
Opzelura. A newer steroid-free cream that takes the itch down quickly. It is meant for short courses on a limited area of the body, and it carries the warnings that come with the JAK class.
One of the strongest steroids there is, kept for thick, stubborn patches and for palms and soles. Two weeks at a time, then a break. Long stretches thin the skin.
A steroid-free cream applied once a day, approved for eczema down to two years old. It calms the inflammation without thinning skin, and in trials the improvement often held for a while after stopping. Folliculitis — small spots around the hair openings — and headache are the side effects that come up, and it is newer and more expensive than a steroid.
Zoryve. Another steroid-free once-daily cream, approved for eczema down to six years old. It is well tolerated on the face and the folds, and it does not sting the way tacrolimus does in the first week. Like the other newer creams, the barrier is cost and coverage rather than whether it works.
Ketoconazole 2% cream. The prescription strength of a familiar antifungal, used for body ringworm that has not cleared on an over-the-counter cream, and for larger patches. It is applied once or twice a day for two to four weeks. Like every cream, it is the wrong tool for the scalp and nails.
Ciclopirox cream. A broad antifungal that also settles inflammation a little, which suits an angry, very itchy patch. It is a reasonable choice when azole creams have not worked or have irritated the skin. It still needs the full course and the same treating past the edge.
Econazole cream. A prescription azole cream used much like clotrimazole, applied once daily for two to four weeks. It has some activity against bacteria as well, which is occasionally useful in a moist fold or between the toes where both are present.
Tablets for severe eczema that has not answered creams — they work fast, often taking the itch down within days. They need blood tests, and the class carries warnings about infection, blood clots and heart problems, so they are prescribed with a proper discussion of who they suit. Usually considered alongside the injections rather than before them.
Works fast on a severe flare, which is what it is for - weeks to months, not years. It raises blood pressure and strains the kidneys, so both are checked while you are taking it.
A weekly tablet for long-running eczema. Cheaper than the injections and slower to work, with blood tests every few months. Ask your doctor about it before trying to conceive, and if you are pregnant or breastfeeding.
Oral steroids clear eczema quickly and it usually returns worse within weeks of stopping. Most dermatologists avoid them for that reason, and use them only to break a severe flare while something slower is started.
A short course when a flare is weeping or carrying golden-yellow crusts, which usually means staph has taken hold. It clears the infection so the eczema treatment can work again. It is not a treatment for eczema itself, and taking it for every flare is how resistance builds, so it is used when there is something to treat.
Terbinafine tablets. The usual tablet for ringworm that cream cannot reach — scalp infections, nails, widespread patches and stubborn cases. Typically two to four weeks for the scalp and several months for nails, because the nail has to grow out. Liver blood tests are checked for longer courses, and it interacts with a number of other medicines.
An equally effective alternative, often used for nails, for widespread infection and for cases that have not responded to terbinafine. It is sometimes given in pulses of one week a month. It interacts with a long list of common medicines, including statins and some heart drugs, so bring your full list to the appointment.
The oldest scalp treatment and still a first choice in children for some species of fungus. It needs six to twelve weeks, and it is absorbed much better when taken with a fatty meal. Newer tablets work faster, so which one is used depends on the species the lab identifies.
A once-weekly tablet, used mainly when terbinafine and itraconazole do not suit. It clears dermatophyte infections less reliably than either, so it is a second-line option here rather than a first choice, even though it is the antifungal most people have heard of.
Dupixent. An injection every two weeks, for eczema that covers a lot of skin and has not answered creams. It is not a steroid and it needs no blood monitoring. Eye irritation is the side effect people actually get.
An injection every two weeks for moderate to severe eczema, blocking one of the same immune signals Dupixent does. It is the usual next thing to try when Dupixent has not worked well enough or has not been tolerated. No blood monitoring, and eye irritation is the side effect to know about, as with Dupixent.
Measured doses of ultraviolet light in a booth, two or three times a week for a couple of months. It works. The cost is time, because it means getting to the office that often.
The same idea as the light booth, aimed at one patch instead of the whole body. Useful when a few stubborn areas are all that is left.
Eczema comes in flares - calm skin, then days or weeks of itching and inflammation, then calm. Most people eventually name their own pattern: the season, the stress, the job, the week before a period. Underneath that, it follows a longer arc.
Untreated, ringworm expands slowly rather than resolving. Treated, it is predictable. Scalp and nail infections run much longer and need tablets — weeks for the scalp, months for nails, which have to grow out.
Impetigo
Bacteria getting into skin that scratching has broken open. It shows as weeping and golden-yellow crusts sitting on top of an eczema patch, and it can turn a settled flare much worse in a day or two. It needs an antibiotic alongside the usual eczema treatment - more moisturizer will not clear it.
Sleep loss, fatigue and low mood
Itch is at its worst at night, so eczema costs sleep - for the person who has it, and often for the rest of the house. Months of broken sleep bring daytime fatigue and poor concentration, and anxiety and depression are more common in people with moderate or severe eczema. It is worth telling your doctor. Treating the eczema properly is usually what fixes the sleep.
Thickened, leathery skin
Months of rubbing and scratching the same patch thicken it into leathery skin with the normal lines cut deeper. Doctors call it lichenification. It itches on its own, and it takes far longer to settle than a fresh flare - stopping the scratching is the only thing that reverses it.
Dark or light marks after a flare
Settled patches often leave flat marks that are darker than the skin around them, and sometimes lighter patches where pigment has dropped out. Neither is a scar, and neither is caused by the treatment. They fade on their own, but over months rather than weeks, and they are more noticeable and longer-lasting on deeper skin tones.
New allergies to products
Broken skin meets far more of whatever is put on it, so people with eczema pick up contact allergies more easily - to preservatives, fragrance, and sometimes to the eczema creams themselves. Suspect it when a treatment that used to work starts to sting or spread the rash. Patch testing is how it is confirmed.
Eye problems
Eyelid eczema and constant rubbing lead to itchy, swollen lids and red, irritated eyes. In severe, long-standing eczema, a change in the shape of the cornea called keratoconus and early cataracts are uncommon but recognized. If the eyes are involved often, it is worth an eye check.
Hand eczema that gets in the way of work
Cracked, sore hands are hard to hide and hard to rest. In wet work - healthcare, food, cleaning, hairdressing, childcare - it can mean time off or a change of job. Treating it early and protecting the hands through the working day is what keeps it from getting that far.
The atopic march in children
Children with eczema are more likely than other children to go on to develop asthma, hay fever and food allergy, often in that order. Doctors call the pattern the atopic march. It is a tendency, not a certainty - most children with eczema do not get all of it.
Kerion and permanent hair loss
Scalp ringworm can turn into a kerion — a boggy, tender, pus-oozing swelling where the immune reaction has gone deep around the hair follicles. It happens mostly in children, and it can destroy follicles and leave a permanently bald scar. Oral antifungal tablets started early are what prevent it, which is why scalp involvement is never treated with cream.
Ringworm hidden by steroid cream
Steroid cream calms the itch and flattens the edge while the fungus keeps spreading underneath. What comes back is larger, shapeless and much harder to recognize, and it is often treated as eczema for months. If a rash improved on a steroid and then grew, say so at the appointment — it changes both the diagnosis and the test.
Nail Fungus
Ringworm that reaches the nails thickens and discolors them and lifts the nail from its bed. It matters twice over: creams cannot reach fungus under a nail, so it needs months of tablets, and until it is treated it acts as a reservoir that reseeds the feet, groin and body again and again. This is one of the most common reasons ringworm keeps coming back.
Seek help for sleep-disrupting itch, recurrent flares or infection. Rapidly worsening painful skin with clustered blisters, fever or eye involvement needs urgent care.
Seek care for widespread, recurrent or uncertain rash, or scalp involvement. Steroid cream alone can disguise and worsen a fungal infection.
Many children improve a great deal by school age, and more through the teenage years. Complete, permanent clearance happens but is not the rule. What usually remains is dry, easily irritated skin that can flare again later, often on the hands. Treating it well in childhood does not guarantee it goes, but it means fewer flares, less scratching, less thickened skin.
Used as prescribed, yes. The rules are simple - mild strengths on the face, eyelids and skin folds, stronger ones for the body and limbs, and courses that run the length of a flare rather than indefinitely. Thinned skin and stretch marks come from strong steroids on thin skin for months without review. If you are using one more or less continuously, go back and ask about a non-steroid option.
Usually not, and this is a common wrong turn. Food allergy is more common in children with eczema, but because both come from the same atopic tendency, not because food drives the rash. Removing foods rarely clears eczema, and long elimination diets can cause nutritional problems and even make a true allergy more likely. A clear, repeatable reaction within a couple of hours is worth investigating. A vague suspicion is not.
Several things line up after dark. Body temperature rises in the evening, and heat triggers itch directly. The distractions that kept you from noticing it are gone. Cortisol, which damps inflammation, is at its lowest overnight. And scratching in your sleep is unconscious, so damage piles up unchecked. A cooler bedroom, moisturizer right before bed, short nails and cotton layers help more than they sound.
Not always. Facial skin, eyelid skin especially, is much thinner and absorbs more of what you put on it. A steroid strong enough for your shins can thin the skin around your eyes within weeks. Face and eyelid eczema is treated with a mild steroid for a short stretch, or a non-steroid cream that can be used long term. Ask before moving a body prescription to your face.
Yes. This is the single habit that separates people who flare four times a year from people who flare monthly. Skin that looks normal in eczema is still leaky - the barrier defect is there whether or not there is a rash. Daily moisturizer on calm skin keeps the next flare further off and smaller. It is maintenance, not first aid.
No. Ringworm is a fungal infection of the outer layer of skin, related to athlete's foot. The name describes the rash, named long before the cause was understood.
For most body infections, much less so after a day or two of treatment. Contact sports set their own rules — wrestling commonly requires around 72 hours of treatment and the area covered. Check with your club or school rather than guessing.
Possibly. Kittens and puppies are common sources, often with only a small patch of thin or crusty fur, or nothing. If a new pet arrived shortly before the rash, ask a vet to check it. Treating people and not the animal is a common reason it keeps returning.
Yes. Same medicines — terbinafine, clotrimazole, miconazole — and the same infection elsewhere. The exception is the scalp and nails, where creams do not work whatever the tube says.
Usually one of three reasons: treatment stopped as soon as the skin looked clear, an untreated reservoir such as athlete's foot or fungal toenails, or a steroid cream somewhere in the routine. Occasionally an infection really is resistant, which needs testing and a prescription.
Not for a small patch on the body, which almost always responds to cream. Tablets are needed for scalp and nail infections, and widespread, deep or stubborn cases. That needs a doctor, partly because some oral antifungals interact with other medicines.
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