Hi there,Ive had 3 injections in my right hand and will get number 4 in 2 weeks.First is swelling i had alot with the multiple injection.It was no were near as bad with the single injection last month.IT will itch also so take benedryl with you for the itching.Depending on how bad and how long your contracture is you might get a skin splt my pinky was bad and it has taken a good month to heal.Doc treated it with silver nitrate to help with the scaring.Your finger will want to contract after and it will so start night and day splinting as soon as possible,I had my manipulations on wedsday and i am back to work on monday cutting meat so the down time is great.There is some tenderness arround the treated area.Good Luck Dave