Julie C. Brown
Pollen is one of the maximum commonplace causes of hypersensitive reactions inside the United States. Pollen is a very nice powder produced through trees, vegetation, grasses, and weeds to fertilize different plant life of the equal species. Many people have an negative immune reaction once they breathe in pollen. The immune system usually defends the frame in opposition to harmful invaders — such as viruses and bacteria — to ward off illnesses. In people with pollen allergies, the immune gadget mistakenly identifies the innocent pollen as a risky intruder. It starts to produce chemical compounds to combat in opposition to the pollen