Injections deliver liquid medications, fluids, or nutrients directly into a person’s body. Different types of injections include intravenous, intramuscular, subcutaneous, intraosseous, and intradermal ...

Pain, swelling, and a rash at the injection site are common reactions to Covid-19 vaccines. Less commonly, someone may develop “COVID arm,” an exaggerated skin reaction to the vaccine. COVID arm is an ...

Subcutaneous (subQ or SQ) injections are shots given in the fatty tissue layer (subcutaneous fat) under your skin. Your skin has many layers, and the subcutaneous layer is beneath the epidermis and ...