Inflammation occurs when the body's immune system responds to injury or infection. When this affects the skin and tissues under the skin then the area can become painful, hot, red and swollen. The letters α and β[18] denote absolute stereochemistry at chiral centers—a specific nomenclature distinct from the R/S convention[19] https://vuf.minagricultura.gov.co/Lists/Informacin%20Servicios%20Web/DispForm.aspx?ID=9595320