Hi, Welcome to HealthcareMagic Forum.
You can use Sunban lotion, but get yourself examined by a Dermatologist
before using any medicine. You can apply to your face only when you move out in sun, just once daily. The possible side effects could be Burning, stinging, swelling or rash
, with or without blisters, but don't worry about the side effects as they may or may not occur. If you notice these, see your Dermatologist at the earliest. Drink Plenty of water and avoid stress
Wish you Good Health, Take Care.