i am sorry for the delayed response, but the unavailability of photos took a little long.
from your description i can offer you differential diagnosis:-
2. seborrheic dermatitis
3. allergic contact dermatitis
4. scalp psoriasis
5. pemphigus vulgaris.
in dermatology, we need to see the lesions to come to a final diagnosis, till then the diagnosis is most probable.
you need to visit a dermatologist and you could discuss my suggestions with him.
i would suggest that till you can get an appointment, you could start using a combination of neosporin and cortisone cream over the lesions twice a day for a week and see if it helps.
also you can wash your hair with ketoconazole shampoo diluted 1:1, twice a week.
please feel free to ask me in case you have any queries.
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