Hello, welcome to HCM.
There is many causes behind hair fall
These may be from hormonal
imbalance, hereditary, food habit, environmental, dandruff
full life etc.
Normally dandruff is a cause of excessive hair fall.
So,You have to follow following instructions.
1.Don't use oil.
2.Every day wash your scalp with selsun shampoo.
3.In summer wash your scalp two times in a day.
4.Take fresh fruit and fresh vegetables
. 5.Take adequate amount of water.
6.Avoid fast food.
7.Use selsun shampoo on your eyebrow.
But keep it away from eyes.
So, don't worry.Take care.