The goal of treatment is to relieve pain and reduce inflammation. Rest or keeping the affected tendons still is essential for recovery.
You may want to use a splint or removable brace to help keep the tendons still. Applying heat or cold to the affected area should help reduce pain and inflammation.
Nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen can relieve pain and reduce inflammation. Local injections of corticosteroids may be useful as well. Some patients need surgery to remove the inflammation surrounding the tendon, but this is not common.
Tenosynovitis caused by infection needs immediate treatment. Your health care provider will prescribe antibiotics. In some severe cases, emergency surgery may be needed to release the pus around the tendon.
If there is no infection, a steroid injection may be used to decrease inflammation along the tendon sheath.
After you have recovered, do strengthening exercises using the muscles around the affected tendon to help prevent the injury from coming back.