How many times a periodontal abscess needs to be drained cannot be generalized, but depends on the severity of the abscess, the patient’s age, and the drainage situation. 1. Due to the inflammation of periodontal abscess, the pus cannot be drained at once. Even when the abscess is mild, it may take about 3 to 4 days to drain the abscess. If the patient is older and in poor health, it may take 1 week or more. 2. When the abscess is serious, it is necessary to incise the abscess, drain the pus, and remove the necrotic tissues after sufficiently flushing the abscess cavity, and then decide how many times to drain the abscess according to the degree of drainage of the abscess. It is important to note that periodontal abscesses need to be treated in a timely manner to avoid causing acute inflammation of the apical abscess. During treatment, avoid spicy foods and practice good oral hygiene.