If you want to reduce the side effects of the pill it is recommended to do the following: 1. Take the pill on time, for example, every day at a fixed time will make the pill more effective and reduce the corresponding side effects. The pill may cause irregular vaginal bleeding, so it is recommended to take it within a fixed period of time.2. When taking the pill, you can take vitamin C and vitamin E at the same time, mainly because vitamin C has a whitening effect and vitamin E can make the skin more elastic and the skin will be shiny. When taking birth control pills there may be a decrease in skin elasticity, long blemishes on the face and rough skin, taking these two vitamins counteracts this side effect of birth control pills, it is recommended to take the above methods, which can reduce the side effects of birth control pills.