Partial rotator cuff tear can be healed without surgery?.i have been doing rehab and icing it for last 2 months . pain is gone but swelling remains

One option: Have you considered asking your physician about adding acupuncture to your current treatment regimen? It can help reduce inflammation & swelling as increasing range of motion.

Rotator Cuff Tear: There are classically 4 rtc muscles. A partial tear of the tendon is usually treated with conservative care. This includes scapular stabilizer exercises and rotator cuff strengthening with proper posture. Takes about 6 weeks to produce hypertrophy of muscle and to remodel the tendon. Other choices can be pain relief medications and interventional injections such as platelet rich plasma.