Ive been dealing with hair loss for the last four years, and I havent seen much improvement after seeing several skin specialists. I heard that applying onion juice to bald spots might help, but Im not sure if its good or bad for my health. Could you suggest if this is safe or if theres something else I should try?

You can use onion juice it's naturally rich in vitamin E and essential nutrients, result is uncertain because cause of hair loss needs to be ruled out, visit trichologist for appropriate treatment.