hair loss with white bulp from scalp and whole body

by ali raza
(Srilanka)

dear sir,,

i have lost about 60% hair from top scalp in last 5 years, most of falling hair has while/yellow bulp on bottom, if i scrach my scalp the white bulp / Along with the scratching i notice that i can pick up tiny white/yellowish specs, like that of a grain of sand on my scalp. hardend white things comes out aslo all hairs are very thin, now it start to lose from mustach, beard and groin area

mean time i have visited many dermatologies but every one has diffrent opinion, now i am using Nizoral Shampoo & selsum blue shampoo

please help me sir.. what can i do to over come from this...please help me