Answer:
You probably need to go get checked.
Depending on where it's been you could have picked up an STI. If you have not had sex then it should clear up. Ask your Doctor.
Dermatitis is referred to different types of skin rashes that are caused by infections, allergies, and irritants (such as soaps, certain creams).
Lesions are usually in the form of itchy small red bumps.
When become white headed, it may indicate a secondary bacterial infection and formation of pus.