Exposure to sun light may cause excessive UV radiation on skin. UV radiation buns skin which cause serious problem. Usually normal sun burn heals itself in a week and additionally you can use following home remedies to treat sun burn.
Using baking soda:
Mix baking soda in water and wash face with it.
Using aloe vera gel:
Take aloe vera gel and apply on skin for 10-20 mins.
Take potato wash and peel and make paste of it and apply on skin.
Using vitamin E capsule:
Take vitamin E capsule and break it and apply at affected area.
Apply raw milk on skin for 10 mins and wash when it get dried. Do not apply any cream after washing.
Mash avocado and mix with olive oil and aloe vera gel and apply on affected area.
Using green tea:
Warm water and put green tea bag in it and let it cool and apply on skin.