im 27 yr old.....i am blessed with bunches of good hairs which is heredity but 3 year before due to some chemical fall over my head and by that time i lost my hair on my back of my scalp like a patch..i worried about it till now there is nothing that i did for it im hopless now......but wanting it back does my hair will regrow on my scalp is any way that i can do....i cant do hair transplant