Hello. Thank you for writing to us at healthcaremagic It is most likely Intertrigo; intertrigo is inflammation of the closely apposed body folds. Hot weather, sweating and constant rubbing being factors that predispose to intertrigo. Candidal infection may supervene on it causing it to become more itchy and red. Candidal intertrigo is more common in those who have diabetes and in these patients it is recurrent. If I was the treating doctor I would suggest you to use a topical combination cream of an antifungal and a mild steroid (e.g clotriamzole and beclomethasone combination cream), twice daily for 2-4 weeks. An OTC oral antihistamine e.g cetrizine 10 mg will provide you symptomatic relief from itching. Once the condition resolves, regular use of an antifungal dusting powder e.g clotrimazole dusting powder, would keep the area dry and therefore keep it in remission. Regards