Tenosynovitis generally will not be squeezed and then grow back, considering that the tendon sheath cysts, you can take medication, surgery and other treatment modalities for treatment. Tenosynovitis belongs to the inflammatory diseases, generally will not have the symptoms of extrusion and then grow out, considering the phenomenon of tendon sheath cysts. You can take oral ibuprofen, aspirin tablets and other non-steroidal anti-inflammatory drugs as prescribed by the doctor for pain relief, but also can be injected with corticosteroid such as cholestyramine hydrochloride injection, betamethasone sodium phosphate injection for treatment. Tendon sheath cysts can also be treated surgically if necessary, mainly by removing the entire cyst. If the cyst is attached to the tendon sheath, part of the surrounding tendon sheath tissue can also be removed at the same time to reduce the recurrence rate of tendon sheath cysts. There is no such thing as a tendon sheath that grows back after being squeezed, which may be caused by a tendon sheath cyst. You should promptly go to the hospital for examination, identify the specific cause of the disease and then standardize the treatment under the guidance of the doctor, do not blindly use medication on your own.