Hello and thanks for the query
First of all immobilize you wrist by some support like cardboard and keep the forearm elevated.
Can take analgesic
drugs and anti-inflammatory drugs to control pain.
Do not try to massage
If you swelling and pain reduces with in 2-3 days than you can start slight movement and see whether painful or not. Else you have to go for X-ray and rule out any type of fracture
. If your symptoms increases or become worse and does not resolve in 2-3 day. you must consult your doctor for further investigations.