Wear a tennis elbow splint to let the inflamed tendon rest and heal. It must be worn correctly. It should be placed down the arm past the painful area of the elbow. It can make symptoms worse if it's directly over the inflamed tendon. Take stress off the tendon by using your other hand or changing your grip. Take NSAIDs (nonsteroidal anti-inflammatory drugs) for pain and inflammation. Talk with your doctor before taking these if you have chronic liver or kidney disease or had a stomach ulcer or digestive bleeding. Also talk with your doctor if you take a blood thinner.
It may be helpful to use an ice pack for the first 24 to 48 hours after the pain first starts. Ice will help ease pain and swelling. Use the ice pack for 10 to 20 minutes at a time. Don't put ice directly on your skin. To protect your skin and prevent skin damage, wrap the ice pack in a thin cloth or towel.