Do you know any Hadith mentioning a disease that causes hair loss, such as alopecia universalis, an autoimmune condition where hair on the body falls out?
What grows and improves hair in the narrations of the Ahlul Bayt (AS):
1- Figs. On the authority of Abu al-Hasan al-Rida (he said: “Figs eliminate bad breath, strengthen the mouth and bones, grow hair, and eliminate illness, and do not require medication.”
2- Henna. It was narrated on the authority of the Messenger of Allah (peace be upon him) that he said: “Dye your hair with henna, for it clears the vision, grows hair, makes the smell pleasant, and calms the wife.”
3- Ivory comb. On the authority of Abu al-Hasan al-Askari (he said: “Combing with an ivory comb makes hair grow on the head.”
4- Siwak, it was narrated: “The Siwak clears the vision, grows hair, and eliminates tears.”
5- Kohl,(Sorma) it was narrated: “Kohl makes hair grow, sharpens the vision, and helps in prostrating for a long time.” Some narrations specified it with kohl, as it was narrated on the authority of Abu Abdullah (he said: “Ithmid clears the vision, stops tears, and grows hair.
” 6- Washing the head with marshmallow On the authority of Abu al-Hasan (peace be upon him): Washing the head with marshmallow every Friday of the year brings sustenance, removes poverty, improves hair and skin, and protects against headaches.
'Wassalam.