My baby is 4 month old, I have severe hair fall

A. Hello ma’am I would advise you to start applying onion juice into your scalp on a regular basis at least 2 to 3 times in a week and keep it for half an hour and then wash it with any mild chemical free shampoo baby shampoo whatever suits you the best you can go for any organic shampoo but the time of juice should only be 30 minutes not more than that