Quad sets. 1  Sit with your leg straight and supported on the floor or a firm bed. (If you feel discomfort in the front or back of your knee, place a small towel roll under your knee.) 2  Tighten the muscles on top of your thigh by pressing the back of your knee flat down to the floor.
allergic reaction. allergic reaction in Medicine. allergic reaction n. A local or generalized reaction of an organism to internal or external contact with a specific allergen to which the organism has been previously sensitized. Examples from the Web for allergic reaction.
Antibiotic allergies or hypersensitivity reactions are some of the most common side effects of antibiotics leading to emergency room admission.1 Always tell your doctor of any previous allergic reaction to any medication, including antibiotics. Mild allergic reactions may only result in a skin rash.