What Should I Do About Severe Hair Fall And A Buzz-cut Sensation Near The Roots After Accidentally Applying Keratin To My Scalp?

I recently did keratin at home and my mistake I applied it on my scalp . now im suffering from hairfall . my hairs went flat sticking to scalp . after touching the scalp I can fell like some percent of my hairs went under buzz cut and some were long . even after touching my hairs they are falling. When I touch my scalp I can fell the sensation of buzz cut though looking at the mirror I can see my hairs are long. It feels near roots . what should I do. my hairs are falling . please help.