Brief Answer:
You may be having
facial melanosis.
Detailed Answer:
Hi XXXXXXX
You may be having facial melanosis. There may be some cause. Sun exposure, cosmetics, perfume,pollutants, vitamin B 12 deficiency, anaemia, drugs, internal diseases etc. may be responsible. Your doctor is on right path. Investigations may be done to rule out
vitamin B12 deficiency and other internal diseases. You continue to apply
kojic acid containing gel at night. Protect the face from sun by sunscreen gel. Take
vitamin C 500 mg thrice a day, nicotinic acid 250 mg thrice a daily and glutathion containing tablet once a day...for long time. Cleanse the face with
glycolic acid and kojic acid containing face wash.
After few months treatment, you may be improved and might get satisfactory result.
I hope you got my answer. Still, any query..you may ask.
Wishing you good health.
Thanks.
Dr. Ilyas Patel MD