HST full form in medical term is Histamine Sensitivity Test. It is performed to detect one’s sensitivity to Histamine, a substance released by the human body’s immune system that leads to allergic reactions and inflammation. The procedure encompasses injecting a small amount of Histamine into a person’s skin and noticing the results. The responses could be swelling, redness, or itching. The duration of the test is about 15 to 30 minutes.
The main purpose of HST is to determine histamine intolerance. HT is a condition wherein a person has a reduced ability to break down Histamine, leading to the development of the chemical in the body. This will result in hives, headaches, flushing, and digestive issues.
Signs and symptoms of Histamine intolerance include:
However, there is no risk associated with HST. But some people may experience a more serious reaction to the histamine injection. Hence, you must consult allergies or concerns with your healthcare professional before taking the test.