Lack of vitamins and excessive internal heat can lead to these symptoms. If you want to treat it now, you should use a skin disease Xuedu pill from Tongrentang. If you want to improve your skin, you can take a natural vitamin C from Yangshengtang. Also avoid spicy food and getting angry, don't use facial cleanser (not these days), stay up as little as possible and drink more water. You can ask questions if you don't understand.