Achilles Tendonitis

About three months ago I was diagnosed with achilles tendonitis. The doctor told me to rest for 2 weeks and I should be fine. That was three months ago and I still have pain in my achilles heel. I told the school nurse about it and she recommend that I take NSAIDs 3 times a day. I know she is not a doctor but she is at least someone that I know with a medical career. I have been taking Advil and Generic CVS Ibuprofen for the last week and a half. And I have seen no improvement.

This time of about three months has been hard on me because I was unable to play any of the sports that I love (Basketball and Track). I have one week from today until basketball summer league starts and I really want to play. I've tried to get rid of this disease. And the only work out I have been doing is an upper body lift. Anything that uses the lower body I have stayed away from.

I would also like to add that I have done plenty of research on the internet on how to ditch this disease. So please help me become health so that I can play basketball in the summer.

Thanks in advance.

EDIT: I would like to add that I have been taking 6 tablets of Ibuprofen a day because that what it says to take unless directed by a doctor to take more than 6.