Hi...
Your
patellar tendonitis as you would have known by now is due to degeneration of
collagen fibres...and need a lot of time to heal.. ad there is very less blood supply to the tendons in general..
If I were your treating doctor..
I would first rest the part with some kind of sports taping so that I will make sure there is no strain or load placed into the tendon
Frequent icing as you were doing it.. I would suggest you to continue every 1 hour once for 15 mins...
Work on isometric quadriceps exercise with tape on...
Gently knead in my front thigh muscle muscle belly to receive the tension on the tendon due to muscle spasm..
I explore the option if injecting PRP with an orthopaedic to help heal the area faster...done under
ultrasound guidance..
once pain received..I would put you into graded
rehabilitation....
Progressing it slowly and steadily increasing the load...all with tape on...
Hope this is helpful for you
Revert back in case you need any further clarification...