Hot compresses can be applied to the eyes every day, but the duration of hot compresses is usually not recommended to be too long, a single hot compress can be applied for about 5-10 minutes, and the temperature of the hot compresses is not recommended to be too high, usually about 40℃ will be able to achieve the purpose. The main purpose of hot compresses is to help restore the function of the levator glands, so that the secretions of the levator ducts can be better discharged, so as not to form a blockage of the levator ducts, which may cause blepharitis or dry eyes. Because the tear film is composed of secretions from the levator glands, lack of secretions from the levator glands can cause abnormal tear composition and lead to dry eyes. Therefore, patients with dry eye can alleviate the symptoms by assisting hot compresses, which can be applied every day, usually 1-2 times to improve the function of the blepharosphenoid glands.