Welcome to HealthcareMagic forum,
Treatment of choice in alopecia areata
is steroid injection at the site of alopecia areata.Along with this one cal apply steroid lotion daily and also minoxidil solution daily.
For seborriec dermatitis ketoconazole
shampoo is good .You should take a a dermatologist
opinion for this .
i hope this answers your question .
wishing you good health.