Hi, my son is 4 years old, he has a red ring round his anus and seems to stay.  We applied an anti-fungal cream, it settled down a bit and came back again.  Can it be yeast infection, food sensitivity? please advise on what we should do.Many thanks best regards,Virginie
Hello, Welcome to Chat Doctor, The history suggests me that your son may be having fungal infection which should be confirmed by physical examination. The fungus is the normal commensalism of the genitals, and it can sustain for longer period of time in wet and poor hygiene areas. For the present symptoms I would suggest you to follow1. Keep the area Chat Doctor. Apply B4 nappy cream after urination and defecation.3. Topical agents like clotrimazole need to be applied daily. Thank you.