A foot strain that is not painful but swollen for two months is mainly related to improper care after the strain and ligament damage due to the strain. Patients can choose appropriate care or treatment according to different reasons and follow the doctor’s instructions. 1. Improper post-strain care: patients who do not take proper care of their strains, often walk on the ground, or engage in heavy physical labor will make it difficult for the strained area to recover, resulting in no pain but swelling. Patients need to take proper care, reduce unnecessary activities, or use braces or casts to promote recovery. 2. Ligament injury: the strain is more serious, ligament injury may occur, ligament injury, it often takes 2 to 3 months for the swelling to subside. If the degree of ligament injury is mild, you can follow the doctor’s instructions oral analgesic drugs ibuprofen, acetaminophen and other non-steroidal anti-inflammatory drugs for treatment. If the degree is more serious, you need to be in the regular hospital for braking treatment. Foot strain two months without pain but swelling should go to the hospital in time to identify the cause of the disease and standardized treatment.