Hi ! thanks for your query. 1. You need to use a good sunblock properly 2. Get blood levels of Vit
B12 done. A deficiency will make skin more sensitive to sunlight. 3. You can apply Melaglow rich cream at night x 20 days to recover your colour.
Next Steps
Visit personally for proper treatment.
Health Tips
You can refer my health feed on "10 Tips for Brighter & Younger Looking Skin!" by Dr. Jolly Shah Kapadia - https://www.practo.com/healthfeed/10-tips-for-brighter-younger-looking-skin-16374/post