I have extreme itching in my thighs. First it started from right side. Now it has spread to other side also. Small blisters have appeared. Skin has become black and scary. I am have applied coconut oil, itch guard ointment and now a clotrimazole cream. But no use. Please help me. I fear it may infect my foreskin. P. S I have picture of it but I didn't find any attachment option in this app.