Doctors u had visited where orthopaedician? Knee pain can be due to many reasons one was uric acid u jave treated it but still knee pain is there their can be underlying cause  need to find it. Proper examination of knee joint by orthopaedician. Blood test cbc esr crp if not done previously . Sos knee xray or mri as per clinical examination . With proper diagnosis after that   treatment can help u. Weight is one of the factor? Any injury or twist of knee ? Any abnormal click sound during benidng of knee joint ? Any locking of knee joint while sitting for long hours? All this questions to be answered and examined by orthopaedician. You can consult a near by orthopaedician or can consult us on practo. Regards Dr Ahesan shaikh Consulting orthopaedic surgeon Mumbai.