My right knee has been bothering me since sat. hurts to go up&downstairs. i did alot of walking and climbing stairs this past week.some advice please?

RICE: Hard to be sure without knowing where it hurts and examining you. In general a brief trial of Rest Immobilization Compression and Elevation may help. Don't overdo any of these but you can use cold packs or a bottle of cold water and a gently wrapped 4-6" Ace as a form of first aid treatment. Will probably subside but you can add Alleve or Motrin if you don't have stomach problems.