You don’t have to go on total bedrest while you’re dealing with this injury, but try to avoid anything that requires you to use that arm for a few days. If your work requires you to lift anything over 5 lb (2. 3 kg), or you participate in an activity that will aggravate the injury, you may need to take a couple of days off.

If you don’t have an ice pack, fill a resealable plastic bag with ice and seal it, then wrap the bag in a dish towel or cloth. You can also pour ice into a bathtub full of cool water, then soak in the slushy bath for up to 20 minutes. Do not place the ice directly against your shoulder, as it could damage your skin. However, an ice bath is safe because the water will be cold, but not freezing.

Cold is most effective at relieving pain and swelling during the first 3 days after the injury, but after that, using heat can help relax the area and may increase circulation, which can promote healing.

If you’re taking oral medications, be sure to only take the dosage on the label. OTC pain relievers can upset your stomach if you take too many, or they can even harm your kidneys if you take a large dose or continue using them for a long period of time. [6] X Research source

Although rest is essential in the first few days after aggravating your bicep tendon, if you leave it immobile for too long, the pain can actually get worse.

Your doctor may order an X-ray or MRI of your shoulder to determine the extent and exact location of the injury. However, they may also be able to diagnose bicep tendonitis with only a physical examination. [9] X Research source

This is only a short-term solution, because repeated cortisone injections can actually weaken the tendon. With repeated use, this may cause tendon rupture.

For instance, your doctor might recommend that you spend 5-10 minutes a day stretching your shoulder in gentle front-to-back and side-to-side circles while you heal.

This process is similar to acupuncture.

This minimally-invasive procedure has few risks, although it may not be as effective for severe injuries as surgery might be. [14] X Trustworthy Source PubMed Central Journal archive from the U. S. National Institutes of Health Go to source This treatment is usually offered as part of physical therapy.

While the effectiveness of this treatment is still being studied, the low risks and promising results make it worth trying if your doctor recommends it. However, it can be expensive, and is typically not covered by insurance.

During the surgery, your doctor will typically make an incision, then repair the torn tendon. However, they may also do surgery to remove scar tissue or remove an irreparably damaged tendon. After surgery, your doctor will give you instructions on how to care for your body as you recover. Typically, you’ll need to wait several weeks before you return to your normal activities.