I use to have a thick hair when I was 20. I've experienced hair loss in past year and it doesn't showed any result after using lots of hair oils and massages. To control my hair loss I shaved my hair, the thing i've seen on my scalp is small patches with white colored, then I consulted a dermatologist he suggested me products for seborric dermatitis. After few weeks all the patches went away but the hair growth was not normal there were lots of gaps and my hair went thin, what should I do now?