ELBOW INJURY

Follow the RICE instructions on the First Aid page.

Whenever there is swelling, bandage the elbow in a slightly bent position. Start the bandage below the swelling and wrap upward, overlapping each turn by one third and continue to above the swelling.
You can also wrap the bandage spiralling up and down to make a figure of eight, overlapping each turn by one third.
Redo the bandage whenever loose.
Wear the bandage for 2 - 3 days.

In moderate and severe pain use a sling for pain relief when moving about.
The sling should support the arm through the elbow and forearm, and have the elbow at a right angle to aid the resolution of swelling. When not moving about, remove the sling and support the arm away from the body, in elevation if possible.
In sitting, place arm on pillows on table.
In lying, place on pillows by side.

Limit activity for two to three days so not increasing the pain.

Then go to elbow assessment through below link to guide your recovery and rehabilitation.

Overuse Forearm Injuries. Acute pain in the forearm muscles after a lot of repetitive effort requires rigid taping to support the muscles and tendon attachments to the elbow (as in the image here) or taping.
Rest the hand on a roll and tape from mid forearm up to past the lateral elbow bone.