Cetirizine is an antihistamine used to relieve allergy symptoms such as watery eyes, runny nose, itching eyes /nose, sneezing, hives, and itching.
When your energy levels go down because of chronic sugar use, your immune system is weakened, making it more likely that you will catch every bug, cold, or flu virus that goes around. The sugar in one can of soda can be enough to suppress your bodyâs defense forces by 30 percent for a three-hour period!
But when you have contact with those germs, your weakened immune system may struggle to fight them back. How Cortisol Weakens the Immune System. Cortisol weakens your immune system for a good reason. During periods of intense stress, as though you were about to face a predator, cortisol is trying to help reduce inflammation by weakening some of the antibodies that can increase inflammation.