My 4 year old son has had a rash on his ankle for a few months now. It doesnt bother him at all. It is red and raised and almost in the shape of a ring. The first time I saw it, I thought it was a rub mark from his sandals so I didnt think much of it.  It seems to kind of come and go, never fully disappearing though.
Thank you for following up. Your kid has allergic dermatitis local erythematous form. I suggest:1. Hypoallergenic diet: avoid oranges, nuts,tomato soup, strawberry, chocolate, lots of candies, flavor juice, judge. Can eat cauliflowers, CDU, potato,cucumber, soup, dahi, panir.2. Antiallergic medicines during the episodes, you can use Cetirizine at 0.25 mg /kg/dose every 12 hours for 10-14 days3. For absorption of allergens -charcoal 1 tablet 1 time in bedtime during 5 days4. For local therapy you can use simple children or milk to moisture this place Thanks for consulting Best regards Chat Doctor. 