Pain relief for preterm contractions

Coral • Ftm with an unexpected pregnancy that has turned into my greatest joy.
After yet another visit to the hospital and another round of shots I am having contractions again since this morning. Unfortunately I'm getting back contractions as well and they are painful. Has anyone found anything that helps with the pain day to day. I have a desk job so obviously I can't take a bath or sit on a yoga ball. Also what kind of treatments have you gotten from your doctor? Mine just keeps giving me the shots which only seem to help temporarily. Thanks in advance!