Whether to apply cold or hot compresses for conjunctival congestion should be analyzed according to the specific situation. If the conjunctival congestion is caused by bacterial conjunctivitis or ocular trauma, cold compresses are recommended, and if the conjunctival congestion is caused by dry eye or visual fatigue, patients are recommended to apply local hot compresses to the eyes. Hot compresses are not recommended for conjunctival congestion caused by bacterial conjunctivitis, because hot compresses will not only accelerate blood circulation, but also lead to bacterial invasion of the entire eye, aggravating the condition of bacterial conjunctivitis. Patients can apply cold compresses to the eyes to relieve the discomfort. In addition, cold compresses can be applied to the eyes in the early stages of eye trauma to reduce swelling and relieve pain. If the conjunctival congestion is caused by dry eye or visual fatigue, patients can apply hot compresses on the eyes to relieve dryness, soreness and other discomfort. It is recommended that patients with significant conjunctival congestion consult a doctor to assess their condition and follow the doctor’s instructions for treatment.