DERMATOLOGY Earlier i had jock itch in groin area,now its recurring,also on inner side of groin near scrotum their was a blackish area,i think it was acanthosis nigricans but it was not itchy,now that area has become whitish in colour and is itchy although jock itch has subsided ,but is still there,can i use tea tree oil diluted on it? Thank you in advance,please help,as its an embarassing problem. Male,19