Definition
Intradermal refers to something that's located or administered within the dermis, which is the layer of skin directly beneath the epidermis (the outer layer). Think of it like a tiny injection ๐ that goes just under the surface. This method is commonly used for allergy testing or certain vaccinations. The injection creates a small bump called a wheal. It's a shallower injection compared to subcutaneous or intramuscular injections.