Treating tendonitis starts with reducing the load on the affected tendon, but the right approach depends on whether you’re dealing with a fresh inflammatory flare or a longer-lasting problem. Most tendon pain that’s lasted more than a few weeks isn’t pure inflammation at all. It’s a degenerative process called tendinosis, where the tendon’s collagen fibers have become disorganized and weakened. That distinction matters because some common treatments for inflammation, like anti-inflammatory drugs and steroid injections, can actually slow collagen repair in a degenerating tendon.
Why Your Tendon Pain May Not Be “Inflammation”
True tendonitis is an acute inflammatory response to sudden overloading of a tendon. You did too much, too fast, and the tissue developed micro-tears. The tendon is swollen, warm, and painful. This phase responds well to rest, ice, and short-term anti-inflammatory medication.
Tendinosis looks different under a microscope. The mature, load-bearing collagen fibers are replaced by weaker, immature fibers that don’t align properly. The tendon thickens, loses its firm white appearance, and develops abnormal blood vessel growth that doesn’t actually improve healing. Critically, inflammatory cells are rarely present. If your tendon has been bothering you for more than six to eight weeks, tendinosis is far more likely than tendonitis. Cases lasting beyond 12 weeks with imaging findings like calcifications or scar formation are considered chronic.
This distinction shapes every treatment decision. For acute tendonitis, the goal is calming inflammation. For tendinosis, the goal is stimulating new, properly organized collagen production and restoring the tendon’s ability to handle load.
First-Line Treatment: Rest and Load Management
Relative rest is the foundation. This doesn’t mean immobilizing the area completely, which can weaken the tendon further. It means avoiding the specific activity that triggered the pain while keeping the tendon gently active. If typing caused your wrist tendon pain, reduce your keyboard time. If running caused your Achilles to flare, switch to cycling or swimming temporarily.
Ice applied for 15 to 20 minutes several times a day helps with acute pain and swelling during the first week or two. For short-term pain relief, over-the-counter anti-inflammatories like ibuprofen or naproxen can help during the acute inflammatory phase. Naproxen is typically started at 500mg, then 250mg every six to eight hours as needed. Keep the duration as short as possible, ideally just a few days, because prolonged use of these drugs is associated with inhibited collagen repair, which is the opposite of what a healing tendon needs.
Exercise Therapy: The Core of Recovery
Loading the tendon through targeted exercise is the single most effective treatment, especially once the initial acute phase has passed. The American Physical Therapy Association recommends 12 weeks of exercise therapy as the first-line treatment for tendon problems. Two types of exercise have the strongest evidence.
Eccentric Exercises
Eccentric loading means slowly lengthening the muscle-tendon unit under tension. For Achilles tendinopathy, the gold-standard protocol involves standing on the edge of a step with your heel raised, then slowly lowering the heel down while keeping the leg straight, using the other leg to push back up. The standard dose is 3 sets of 15 repetitions, twice daily. This controlled stress stimulates fibroblast activity and encourages the tendon to produce properly aligned collagen fibers.
Isometric Exercises
Isometric holds, where you contract the muscle without moving the joint, are particularly useful for pain management early in rehabilitation. For patellar tendon pain (common in runners and jumpers), isometric contractions can be performed without triggering pain while still maintaining muscle strength. A typical protocol involves holding a contraction for 45 seconds, performing 5 repetitions per set, 3 sets twice daily. These are a good entry point when eccentric exercises still feel too painful.
In clinical trials, participants who completed 16 weeks of standardized exercise therapy showed significant improvements in symptoms, function, and tendon structure regardless of how long they’d had symptoms before starting. The key is consistency over months, not days.
When Standard Treatment Isn’t Enough
If three to four months of exercise therapy and activity modification haven’t produced meaningful improvement, several second-line options exist.
Shockwave Therapy
Extracorporeal shockwave therapy uses focused pressure waves directed at the tendon. It’s noninvasive, relatively low cost, and has strong evidence for tendon problems that haven’t responded to conventional treatment. In clinical studies of elbow tendinopathy, Achilles tendinopathy, plantar fasciitis, and rotator cuff tendinopathy, patients experienced significant reductions in pain and improvements in function and quality of life after treatment. These improvements continued to increase at four-week follow-up, suggesting the therapy triggers an ongoing healing response. Most protocols involve three to five sessions spaced a week apart.
PRP Injections
Platelet-rich plasma injections use a concentrated preparation of your own blood platelets, which contain growth factors thought to promote tissue repair. The evidence is mixed. A meta-analysis of PRP for Achilles tendinopathy found a statistically significant reduction in pain scores at 12 weeks compared to control treatments, but no significant differences in overall function, return-to-exercise rates, or patient satisfaction. PRP may offer modest pain relief for some people, but it’s not the game-changer it’s sometimes marketed as.
Corticosteroid Injections: Proceed With Caution
Steroid injections provide rapid short-term pain relief, but the long-term picture is concerning. In one cohort study of shoulder patients, those who received steroid injections had a tendon tear rate of 9.8% compared to 1.2% in the non-injection group. After adjusting for other factors, steroid injections were associated with a 7.4 times higher risk of tendon tears, with tears developing an average of 39 months after injection. Steroids also inhibit collagen repair. If your problem is tendinosis rather than true inflammation, steroid injections can worsen the underlying condition while masking the pain.
Supporting Recovery Through Nutrition
Tendons are primarily made of collagen, and there’s emerging evidence that supplementing with collagen peptides can support repair. In one study, 15 grams per day of vitamin C-enriched collagen boosted collagen synthesis rates by 153% from baseline, significantly more than a 5-gram dose (59% increase) or placebo (54% increase). Taking collagen peptides with vitamin C about an hour before exercise therapy sessions may maximize the effect, since loading the tendon after supplementation directs the building blocks toward the stressed tissue.
This isn’t a replacement for exercise therapy, but it’s a low-risk addition that may accelerate the remodeling process.
Preventing Recurrence
Tendon problems are notorious for coming back, especially if the underlying cause isn’t addressed. For computer-related tendon pain in the wrists, elbows, or shoulders, workplace modifications have moderate to strong evidence for prevention.
- Forearm support: Using arm supports at your workstation, especially combined with an ergonomic mouse that keeps the forearm in a neutral position and reduces wrist rotation, decreases the risk of upper limb disorders.
- Keyboard height: Position your keyboard so that when your fingers rest on the home row, the upper border of the keys is at elbow height or slightly below, never higher.
- Regular breaks: Rest breaks of 5 to 10 minutes every hour, along with 30-second microbreaks every 20 minutes, reduce strain accumulation significantly.
- Resistance training: Workplace-based strength training programs have the strongest level of evidence for preventing and managing upper extremity tendon problems. Stronger muscles absorb more force before that force reaches the tendon.
For sports-related tendon issues, the same principle applies: gradually increase training volume rather than making sudden jumps, and build strength in the muscles surrounding the affected tendon. A tendon that has fully recovered its collagen organization through proper loading can handle as much stress as it did before the injury, but rushing back to full activity before that remodeling is complete is the most common reason people end up back at square one.
Surgery as a Last Resort
Surgery is reserved for cases where months of conservative treatment have failed or where the tendon has a significant structural tear. The type and location of the injury heavily influence surgical outcomes. For chronic tendinosis, surgical procedures typically involve removing the degenerated tissue and stimulating new tissue growth. For acute tendon ruptures, the goal is reattaching the torn ends. Recovery from tendon surgery often requires several months of progressive rehabilitation, following the same exercise principles used in conservative treatment.