Natrum muriaticum Nat-m
Has the symptoms of easy falling out of the hair; it falls out when touched or combed. This is quite frequently seen in nursing home. Carbo vegetabilis has falling of hair after parturition or severe illness.
Sepia has losing of hair after chronic headaches.
Phosphorus Phos
Bald spots on the head, which are dry and scaly, are characteristic of Phosphorus. Dandruff, roots of hair get gray and the hair comes out in bunches. Graphites cures bald spots on the sides of the head. The head sweats easily. The most important remedy in alopecia areata.
Phosphoric acid Ph-ac
Falling of hair from general debility. Fluoric acid. Falling of hair from syphilis. As near specific as is possible.
Arsenicum. Bald spots near the forehead; the scalp is covered with dry scales.
Vinca minor. Falling of the hair with great itching of the scalp.