Cystic acne forms sebaceous cysts of varying sizes on the skin, which often bleed into a bloody jelly-like pus after rupture, followed by purulent infection. This disease is mostly caused by lung heat and blood heat stagnating in the skin, or by excessive consumption of thick foods that accumulate heat in the spleen and stomach, or by impure skin. To clear heat and detoxify, cool the blood and move stagnation. It can be treated with Chinese herbal medicines, Liushen Pill and Mymomycin, and topical antibiotic ointment. To do a good job of daily prevention of cystic acne, do not squeeze the acne with your hands to avoid infection and aggravation of the disease, which can lead to permanent depressed scars. Eat a light diet avoiding high-fat, high-sugar, spicy and fried foods, and eat more vegetables and fruits and drink more water. Regular exercise can speed up the blood circulation and make the toxins in the body discharged through exercise. It is also necessary to develop good habits of rest and relaxation to ensure the metabolism of the skin. You should not stay up late because staying up late will seriously hinder the repair of the immune organs depleting the essence and blood, damaging the immunity of the body and reducing the inhibition of acne infection and inflammation. Cleanliness is very important for acne patients. You can use a facial cleanser that is strong in removing fat and dirt, and wash it off with warm water. Avoid using oily or powdery cosmetics, and the work of removing makeup should be thoroughly done before going to bed to keep the pores breathing and avoid acne getting worse. It is important to keep your mood relaxed, have smooth bowel movements, and adjust your daily diet and good habits to help treat acne and acne care.