From your description this seems to be due to jock itch
, which is simply overgrown fungal growth in that area between the inner thighs. What you need to do first is to get rid of V shaped underwear and start wearing normal boxer shaped underwear. Wear loose clothings to avoid excessive friction. Keep the area always dry after washing regularly with normal soap and water. Application of OCIBEC-N cream would be helpful, however application of only Clotrimazole
cream with menthol would also be beneficial. Regards.