Fungal skin infections are caused by fungi that grow well in areas that are damp, sweaty and stuffy, such as the groin, skin folds, under the breasts, the back and the feet. Ringworm and tinea versicolor are the two most common groups. Although they are not serious diseases, they are often a nuisance, itchy, and can keep coming back if not managed correctly.
Ringworm
Ringworm appears as a red, ring-shaped rash with a clearly raised edge and scaling, and it usually itches. The centre of the ring may look paler, giving it the appearance of a ring. The rash gradually expands outwards, and is found on the trunk, groin and between the toes. Ringworm can be passed on through contact and by sharing items.
Tinea versicolor
Tinea versicolor is caused by a yeast on the skin, producing spots or patches that are white, light brown or faint pink with a fine scale. It is commonly found on the back, chest, neck and shoulders, especially in people who sweat a lot and have oily skin. Tinea versicolor usually isn't very itchy, but it makes the skin colour uneven.
Prevention
Because fungi love dampness, keeping the skin clean and dry is the heart of prevention.
- Keep clean and dry yourself thoroughly, especially in the skin folds after bathing
- Don't wear damp or sweaty clothes for long periods, and change clothes after exercising
- Don't share personal items such as towels, clothes, shoes and combs
Treatment with antifungal medicine
Fungal skin infections can be treated with a topical antifungal cream as recommended by a doctor or pharmacist. In cases that are widespread or chronic, oral medicine prescribed by a doctor may also be needed. The important point is to keep applying the medicine for the full course even after symptoms improve, so the fungus is fully cleared and recurrence is reduced.
Additional self-care
Besides using medicine, you should keep the affected area dry and well ventilated, wear loose, breathable clothing, and wash your clothes and towels clean and dry them thoroughly in the sun. If someone in the household has ringworm, you should avoid sharing items so it doesn't spread to others.
When you should see a doctor
- Chronic recurrence, or self-treatment that doesn't clear it up
- A rash that spreads widely, becomes inflamed, swollen and red, or has pus
- Fungal infection of the scalp or nails, which usually needs oral medicine and specific care
- People with underlying conditions such as diabetes or a weakened immune system
At Doctor Chat Clinic, a doctor examines and treats skin conditions including fungal infections such as ringworm and tinea versicolor, helping to diagnose and distinguish the type of rash, choose a suitable antifungal medicine, and give advice on preventing it from coming back.