Hello and welcome to HCM.
It seems you have got psoriatric
arthritis.
If I were your treating doctor I recommend,
-NSAID's like ibuprofen ,naproxen along with
proton pump inhibitors
-Local ice pack application if swelling exists.
-avoid putting direct weight on joints
-Regular stretching and muscle strengthening exercise.Healthy diet containing green leafy vegetables,nuts,almonds,flaxseed,dairy for calcium,phosphorus,
magnesium and antioxidants.
Need to visit orthopaedician if symptoms persists.Certain drugs like
methotrexate,steroids may be needeed.
Hope this information helps.
Thanks