Hello, welcome to HCM You most likely have aquired a fungal infection...Fungi require moisture to grow and reproduce...Warm, moist areas of the body, such as the genitals are commonly involved...Sweaty and tight clothes and shoes can enhance fungus growth on the skin... Keep the affected skin clean and dry...Daily bathe and prevent excessive sweting and humid conditions... Practice daily washing of socks, towels, bathmats at a temperature of at least 60C... You should take oral terbinafine like Tab Zimig 250 mg once a day for 2-3 weeks along with topical sertaconazole or luliconazole based cream twice a day... For itching use levocitrizine 10 mg in the evening... Hope this will help