Rashes on buttocks. And similar.

Fungal infection tends to affect folds of the skin, moist areas like groins, armpits, mouth, genitals, under the breasts, webs between fingers and toes, etc. Our skin protects us from fungal/yeast attack, but any cut or break in the continuity of the skin can allow penetration of fungus. It gives rise to rash, eruptions, redness, burning, intolerable itching and abnormal discharges at times. Fungal infection tends to last for many years if not treated well. It is also contagious. 1. Make sure everyone affected around you has it treated 2. Take a proper course of medicines 3. Absolutely Avoid using preparations like Quadriderm Four derm Betnovate c etc which contain steroids. 4. Wear loose fitting cotton clothes 5. Don't share towels etc 6. Of late lot of resistance to medicines is seen, so it may require a longer course or change of medicines

Consult on private chatwith clinical photographs for treatment Avoid steroid containing creams like Zole F etc.  application of steroid containing creams Betnovate etc just suppresses it on surface but it grows beneath the skin and spreads everywhere and also becomes more resistant.

Following blog posts should be helpful "Fungal Infection, Ringworm: What You Should Know" by Dr. Jolly Shah Kapadia - https://www.practo.com/healthfeed/fungal-infection-ringworm-what-you-should-know-14722/post "Top 10 Ways to Keep Fungal Infection at Bay !" by Dr. Jolly Shah Kapadia - https://www.practo.com/healthfeed/top-10-ways-to-keep-fungal-infection-at-bay-24925/post