I am not sure why all of a sudden I am facing hairfall and have noticed white bulb at the end of hair.

Hair fall with a white bulb at the end can be a sign of telogen effluvium, which is often triggered by stress, illness, or hormonal changes. To help with hair fall, you can try using Minoxidil solution 5% once daily on the scalp. Additionally, taking Biotin tablets 10,000 mcg daily can also support hair growth. Make sure to eat a balanced diet rich in vitamins and minerals, and avoid excessive heat styling or harsh hair treatments.