Cinnamon comes from a tree. People use the bark to make medicine. Cinnamon bark is used for gastrointestinal (GI) upset, diarrhea, and gas. It is also used for stimulating appetite; for infections caused by bacteria and parasitic worms; and for menstrual cramps, the common cold, and the flu (influenza). Cinnamon bark, as part of a multi-ingredient preparation, is applied to the penis for premature ejaculation.
PPD skin test. The PPD skin test is a method used to diagnose silent (latent) tuberculosis (TB) infection. PPD stands for purified protein derivative. You will need 2 visits to your doctor's office for this test. At the first visit, the health care provider will clean an area of your skin, usually the inside of your forearm. You will get a small shot (injection) that contains PPD. The needle is gently placed under the top layer of skin, causing a bump (welt) to form. This bump usually goes away in a few hours as the material is absorbed. After 48 to 72 hours, you must return to your provider's office.
Rapid testing at a community health center or clinic usually requires blood (either drawn by puncturing a vein or from a finger prick) or saliva (i.e., from an oral swab). Results can take anywhere from 2 to 40 minutes but generally take 10 to 20 minutes. Laboratory-based tests use methods that are more accurate, but may also take longer (generally 30 minutes to more than 3 hours). This makes laboratory-based testing well suited for confirming the results of a rapid or at home test.