I have had a severe itching scalp for months, went to dermatologist and he said it was dermatitis, gave me medicine to apply b.i.d. but it is so oily can t use it if I m going out in public because my hair looks horrible. Now I have pinprick sensations all over my body. It may be on my arm, then leg, earlobe, neck - just continuously with no relief except to scratch! Help please.