I had swelling in my left knee in 1st week of jan 2019 on 4th Jan- fluid was removed from my knee. Medicine given were dihasesp, dicophase. On 11th jan: medicine were changed: sazo500, diphase & dicophase on my next visit [ megfreeflex and sazo500] since then I still have little swelling and movement issues with my knee can't bend it fully and slow walking. Issues with stairs. It still painful. I visited another doctor and he requested to do the below mentioned test. I wish to get better, I want clarity on my situation and suggestions for my treatment 1.ra test sample type: observed value 3.6 iu/ml quantitative determination of rheumatoid factor method: immunoturbidimetry interpretation: rheumatoid factor is found positive� 2. Vitamin b 12 level observed value: 190 pg/ml (low) cobalamin� 3. vitamin: 7.58 ng/ml (low) 4.uric acid: 6.5 (normal) 5. Esr: 21 mm/1 hr (high) 6. Cbc report is attached� 7.mri left knee is also attached.