this is a very common problem, dont worry, all you have to do is apply perlice 1% lotion on your scalp for 20 minutes at night and then wash off, use narrow teethed comb to comb your hair.
also take : tablet bandy plus 12mg oce a week for two weeks i.e., 2 tables only.
if itching is there take tablet. teczine 5mg daily night for 10 days only
Next Steps
if still the problem persist, consult a nearby dermatologist