A chalazion, also known as a chalazion cyst, usually forms a cyst wall around an inflamed mass and is self-healing in relation to its size. Small chalazia can resolve on their own, usually in 2-4 weeks, while large chalazia do not disappear on their own and can be made smaller by cold compresses, hot compresses or eye drops or ointments, or in severe cases by surgery. Chalazion is a sterile chronic granuloma, which is a retention of secretions caused by obstruction of the lid gland ducts. It is characterized by hard nodules in the eye that are not painful to touch. Early chalazia can be treated with moist hot compresses and after 1 week of observation if the lump becomes softer and smaller, continued treatment is recommended and may usually heal spontaneously in 1 month. Larger chalazia need to take measures such as hot compress, dotting eye drops, eye ointment and other measures to deal with. If the symptoms do not improve after the above treatment, surgical treatment can be performed to completely remove the wall of the sac and its contents. Patients with chalazion need to ensure the cleanliness and hygiene of the eye, often apply hot compresses and massage to the chalazion, pay attention to a light daily diet and avoid eating hairy substances. If chalazion surgery is performed, the wound should be kept away from water after surgery and regular eye examinations should be conducted to ensure eye safety.