Hi and welcome to Healthcaremagic. Thank you for your query. I am Dr. Rommstein, I understand your concerns and I will try to help you as much as I can. YOu should try with nonsteroid painkillers such as ibuprofenum or Ketorlac first. Strapping your affected finger or thumb to a plastic splint can ease your symptoms by stopping your finger moving. If your finger is particularly stiff in the morning, it may help to use a splint overnight. Corticosteroids are thought to work by reducing swelling of the tendon, allowing the tendon to move freely again. This can sometimes happen within a few days of having the injection, but it usually takes a few weeks. Sirgery is the last option and may be recommended if the above treatments don t work or are unsuitable I hope I have answered you query. If you have any further questions you can contact us in every time. Kindly regards. Wish you a good health.