For a mild case of fungal infection, your can use over-the-counter antifungal ointment, lotion, powder or spray. The rash may clear up quickly with these treatments, but continue applying the medication twice a day for at least 10 days...but before starting the treatment its important to diagnose it...so Consult nearest dermatologist they will do the needful.

See don't think only show it to physician or dermatologist.... Underdiagnosis never cure the problem