Medically reviewed by Oluseun Olufade, MD Water on the knee, or knee effusion, refers to the buildup of fluid in and around the knee joint. This condition leads to a painful, swollen knee and can be ...

Stull said that a number of prescription treatments exist for topical psoriasis, such as steroids and injectable therapies, but there are also over-the-counter products that can help manage flare-ups ...