Are there any nonsurgical treatments for trigger finger?

Hi, semihappy1.

Like you already know, the surgery is your best bet. But, if you want to avoid it, you'll need a lot of patience.

Start with self massage and include chiropractic into your recovery.

Ice packs and NSAIDs are mandatory, but I would suggest you to first consult your doctor. You can even try the steroid injections. 

Let us know of your progress.

Wish you luck in your recovery.