Hi Dear, Thanks for your query to HCM.
Read and reviewed your query facts in context to your health concerns
Based on the facts of your query,You seem to have
Contused Knuckle with painful swollen vein on finger and arm.
The pain in making fist is mostly due to the contused tendon and
soft tissue around the contused knuckle.
The swollen Vein in the finger is from the thrombophelbitis and venous obstruction from vein spam and clots if any.
Also the swelling is due to increased arterial flow from hyper circulation after the hard hit you had.
Treatment-
Cold sponging with Ice-x 3 days.
Tab
Motrin 400 mgx 1 x 2 times a day.
Rest And Elevation.
IF no relief check up with Surgeon / or Gp doctor, who would assess the need for X-ray of the injured knuckle.
Hope this would help you to plan treatment from your doctor there.
Keep Me updated if you need any more help 24x7.
Welcome for any further query in this regard.
Good Day !!
Dr.Savaskar M.N.
Senior Surgical Specialist,
M.S.Genl-CVTS