N.
I would think it was either scalp dermatitis or stress, I've dealt with both, dry itchy scalp, I tryed everything from tea tree oil shampoo's, to denorex (which I might add worsens the effect), to lemon tea baths, vinegar, to V05 hot oil, I now have a neutrogena deep conditioning conditioner and it is great. As for the body rash I get that as well itchy hives all over my neck and chest from allergies or stress you pick but I take allergy medicine for that and it goes away, you dont need the prescription, try the over the counter zyrtec and see if that works.