When home care is warranted, We often recommend treating a swollen knee with R.I.C.E.: #Rest, #Ice, #Compression, and Elevation.
Rest. Refraining from sports and other activities for 24 hours or longer will give the joint time to repair and recover. The joint should not necessarily be immobile; people with knee swelling should try to gently flex and straighten the knee several times a day to maintain range of motion.
Ice. Applying a cold compress to the knee for 20 minutes 3 to 4 times each day can decrease swelling and promote healing. Ice should not be applied directly to the skin.
#Compression. Wrapping the affected #joint in an elastic bandage (e.g. Ace bandage) may help limit or reduce #swelling.
#Elevation. #Sitting down with the #leg elevated on a stool or lying down with the foot elevated on a pillow can help reduce blood flow to the area, thereby reducing #inflammation.
Using the R.I.C.E. formula, swelling often goes down in 1 to 3 days. If swelling does not go down within a few days of starting R.I.C.E., or if swelling and #pain worsen, contact a doctor.