Hair growth! PLEASE HELP!

Mia • mother to four angel babies 3.19.15||5.17.17||9.7.17||4.12.18 // Instagram: miawillii
I have eczema which is like psoriasis where I have flakey skin on my scalp, I believe this is effecting my hair growth(assuming this since my hair hasn't grown since it started forming) I use eczema shampoo but not even that helps, if ANYONE has ANY advice, please help!