What is really going in hay fever?

Before we look at the three ways that homeopathic remedies can help hay fever, we need to ask the question “what is really going on in hay fever”? 

Hay fever is caused by pollen isn’t it? Well, although pollen is the trigger for the irritating symptoms of hay fever, the root cause is actually a loss of immune tolerance. Usually substances in our environment, such as pollen, are tolerated by the immune system because it considers them harmless. However, in people with hay fever, the immune system has become hypersensitive and completely overreacts to pollen, treating it as a threat. This triggers the release of IgE antibodies and histamine which cause the distressing sneezing, itching, runny nose, wheezing and coughing.

Why does the immune system become hypersensitive?