It may be genital warts.  But need to see pictures of the lesion... for proper diagnosis and treatment

U need to have pic of lesion for diagnosis and treatment Kindly send pic of the lesion

This may be genital warts. Please send photos using online consult option for proper examination diagnosis and treatment. It needs it be treated as it will spread on your body and also to others.

Fungal infection or Ring worm.. when occurs in groin, called as jock itch.. Usually fungal infection is common in moist areas of body like skin folds..It's mostly circular or round in appearance.. May be red or black in colour.. Treatment depending on the type and severity.. Avoid sharing clothes, towels and soap; sweating also increases it..As it has to be differentiated from eczema and infection, its a must to see and confirm the diagnosis for proper treatment..So, please send photos of the affected area for accurate diagnosis and treatment.

You may have skin condition called keratosis pilaris or lichen spinulosus. Kindly send clinical photo through online consultation