my son 7 year old.he sudden hair fall.1 month use biotin tablet.but not improvement??

A. A lot of times hair fall and search small kids could be due to deficiency of iron in the body which is extremely common which is why I would definitely give you an advice to get it checked with your doctor and start with all the necessary supplements which were going to be suggested by the doctor as that is what is going to be helpful in controlling the problem