The most effective treatment for fluid in the knee joint is taking prescribed medicines or having a surgical procedure done if necessary, according to Mayo Clinic. Treatments for fluid in the knee joint vary depending on the severity of the swelling, the condition causing it and a person's medical history.
If an infection is causing fluid in the knee joint, a doctor may prescribe antibiotics to fight it, notes Mayo Clinic. Some physicians may prescribe corticosteroids, which are powerful anti-inflammatory drugs that are either injected directly into the knee joint, or swallowed. If standard pain-relieving drugs do not suffice, a doctor may prescribe stronger pain medications.
A doctor may perform surgery to drain fluid in the knee, states Mayo Clinic. Arthroscopy is a surgery procedures that involves inserting a tiny camera into the knee, allowing the surgeon to repair knee damage or remove loose tissue. In severe cases, it may be necessary to replace the knee joint.
While there is swelling and pain from fluid in the knee, it is important to reduce physical activity as much as possible, states Mayo Clinic. Every two to four hours, ice should be applied to the knee for 15 to 20 minutes. While icing, the knee should be elevated above heart level.