Petroleum Jelly Can Prevent Hay Fever

A pharmacist says that petroleum jelly really can prevent hay fever.

Q: Can putting petroleum jelly around my nostrils prevent hay fever?

A: Hay fever occurs when pollen enters the nostrils, eyes or throat and attaches to mast cells, white blood cells that are part of the body's immune system and which release the chemical histamine, triggering symptoms such as sneezing, itchy eyes and runny nose. Read more