You could be having some form of allergic reaction or acne. Use a good sunscreen.
Next Steps
You can consult on private chat with clinical photographs for treatment
Health Tips
Following blog posts should be helpful "Know Your Sunscreens" by Dr. Jolly Shah Kapadia - https://www.practo.com/healthfeed/know-your-sunscreens-10022/post"
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