Swelling of the foreskin may be glans circumcision, chronic eczema, filariasis, etc. Antibiotics, antihistamines, hormones, and antiparasitic drugs should be taken as prescribed by the doctor for the cause. 1. For those caused by glans phimosis, oral antibiotics such as levofloxacin can be taken to help control the infection. 2. For chronic eczema, antihistamines such as loratadine and hormonal drugs such as prednisone can be taken orally to help relieve symptoms. 3. For those caused by filariasis, anti-parasitic drugs such as etanercept can be taken orally to kill adult or larvae of filarial worms. It is recommended that people with swollen foreskin go to the hospital in time to clarify the cause of the disease and carry out standardized treatment under the guidance of the doctor to avoid delaying the condition.