You are too young to suffer from osteoarthritis.
Besides osteoarthritis there are so many causes of pain in knee.
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 no pillow under the head.
--. 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.
Dr N C Gupta MS (ortho.)
DMC no.3624