This treatment is being suggested on bases of the information provided. However I would like to examine & investigate you  in detail. -Control  Hypertension, Diabetes or  metabolic disorder, if there is any. --. Sleep on a hard bed with soft bedding. --. Keep a  pillow under the leg. --. Avoid painful acts & activities. --. Fomentation with warm water/ Gel pac . Let the part not be exposed to cold. -- .Do mild exercises for back and lower limbs. --.visit my YouTube channel 'DrN C Gupta' and watch 'Me & My Yoga' and 'Yoga Simplified'. Kindly subscribe to the channel to get continuous guidence & notifications. IT IS FREE. --or else contact a physiotherapist. https://youtube.com/channel/UCPEQc6B1ywzwin048JSu6rw -Any way it may be tried, --. Ugesic (Piroxicam) 20mg 1 tab once a day x 5days --. Caldikind plus  (Mankind) 1 tab Once  a day x 10 days. -(You may need help of your local doctor to get these medicines.) Kindly make sure, there is no allergy to any of these medicines. --For emergency treatment visit nearest hospital. --Wish you a quick recovery & good health. Thanks. Dr N C Gupta MS (ortho.) DMC no.3624

Need to examine your knee and leg to comment better Swelling can be due to many reasons , uric acid is ruled out , there is no history of trauma , Avoid massage .

Even if your blood tests are normal there might be number of reasons for the pain. So kindly discuss with your orthopaedic doctor and decide regarding further treatment plans.

Was there any injury or long tune walking/standing/travelling? Swelling in only knee or leg? Leg upto midleg or upto ankle? Pain relieving and worsening factors?

You need some more specific blood test and medicines Consult me search browse on goggle practo website Dr Rajinder sharma senior Orthopaedic neurospine joint Replace surgeon ,42 years expertise chandigarh health Department Govt Multispeciality Hospital retired Chandigarh(U.T)

If your knee is examined thoroughly and suspected of some issues it is not necessary that it is normal if the blood test are normal.. There are different entities which can cause knee pain and swelling..And the time taken for those to subside differ in different conditions.. Kindly follow your clinicians advice..