Drink a lot of water everyday,min 1.5 lt a day.Eat a lot of vege and fruit.
Step2
Reduce /stop eating any food that contain too much eggs,salt,spice,fat,food that ur allergic to,food that produce heat such as wine/beer,and avoid heat/sunlight,and polluted place.
Step3
sleep enough
Step4
dont forget to wash your face every morning and before u sleep,and wipe clean and dry your face whenever it cover with sweat and face oil.