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.
An adverse reaction to a drug is any unintended effect of a drug, not including failure of the drug to work, abuse of the drug, or overdose of the drug. Adverse reactions to drugs include both drug allergy and drug intolerance. A drug allergy is caused by the immune system reacting to a drug. There are several different types of drug allergies that lead to allergic reactions. Reactions to drugs range from a mild, localized rash to serious effects on different