This treatment is being suggested on bases of the information provided. However I would like to examine & investigate your sister 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 legs. --. Avoid painful acts & activities. --. Fomentation with warm water/ Gel pac . Let the part not be exposed to cold. -- .Do mild exercises for neck 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 her a quick recovery & good health. Thanks. Dr N C Gupta MS (ortho.) DMC no.3624

If there is morning stiffness, then you need to go for some blood test..

Better to visit nearby orthopedic surgeon or do video consultation here

Tell her consult online

Swelling in the legs and hands can be due to various reasons, namely - problems in the veins/ arteries, protein deficiency, heart issues , infection , some medications etc. This needs proper evaluation to narrow down on to a diagnosis.