Around 500 hair falling in a day is a big number and is definitely matter of concern.
Hair fall may be due to many causes, some of which are -
2. Anemia and other nutritional deficiency
3. Thyroid disorder
4. Immunological eg. alopecia
5. due to stress like surgery, psychological etc.
6. various drugs like retinoids
, cytotoxic drugs etc.
Without thorough examination and investigations, exact cause and treatment can not be determined. You need to visit a dermatologist
for this whole exercise.
The red bumps must have been the development of contact dermatitis
due to the oil. Avoid that oil in future.
Dr. Ajit Singh Kulhari
MD - Skin & VD