Inflammation is our body’s first reaction to infection. When a person gets a cut, for instance (which damages the tissue), those dreaded invaders (called bacteria) enter the body, and the immune system kicks in immediately. This defense mode sends out many different types of specialized immune cells. Each cell has a different job. Mast cells release histidine and cytokines which alert your body of the damage. Histidine’s main job is to increase blood flow to this damaged area which is what causes the redness and swelling. Cells found in the connective tissue and epidermis of the skin, called macrophages (commonly called large eating cells), then enter into the area. Macrophages’ job is to secrete immune messenger that destroys the bacteria, cleaning up the damaged area. The final process is for the cavalry of immune cells to enter the infected area to help with the battle, followed by more cells which begin the healing process.