Seborrheic dermatitis is a very common condition, it can be on scalp, face, ears. It's treated with anti dandruff shampoos and topical steroids for the itching. I would try some hydrocortisone cream and see if that helps, if so then go to your doctor toget a Rx for a maintenance medication.
Hello,
For such sensations, parasthesia should be ruled out. Parasthesias are common in alcoholics and metabolic disorders like diabetes, hypothyroidism, and hypoparathyroidismThey can also be due to peripheral vascular disease, nerve irritation, vitamin B12 deficiency or malnutrition.
Get your blood sugar and thyroid hormones levels evaluated. You can take some vit B12 for some days and see if the symptoms are gone or not.
In case the symptoms persist then get it evaluated from a doctor. Nerve compression needs to be ruled out for which a nerve conduction velocity test can be done. Also then allergy to hair colors and temporal arteritis should be ruled out.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.