1) Diet Is the Key
Food allergies can produce a wide array of symptoms.  If you have symptoms for which there is not a visible cause, then the first thing to consider is food allergies.  The good news is we can discover the problem foods with the elimination diet and get rid of the symptoms and the suffering by removing those foods from our diet.  Even if we have environmental allergies such as pollen, we can improve this or cure it by adopting a good diet which will, in turn, moderate and enhance our immune system.  Our healthy immune system will not overreact.

Allergy

2) Tulsi Tea
The Indian Ayurvedic texts and other scriptures have revered Tulsi (holy basil) for over 5000 years as the most supreme of all medicinal herbs.  Clinical studies have shown that it is most helpful as a treatment for allergies. 

3) Childhood Vaccines May Cause Allergies
There is mounting evidence to suggest that childhood vaccines may be a principal cause in fostering allergic hypersensitivities in the developing immune systems of children. 

4) Neti Pot Allergy Home Remedy
As a home remedy for when my allergies act up in the springtime there is only one way for me to get relief and that is with a Neti Pot.  This is a technique that has been used for thousands of years in India and other places.  Put a little warm salt water in and let it clean out your sinuses and nasal passages.  This really does wonders for me!
 
5) Quercetin
Quercetin is a natural substance derived from plants. It is a bioflavonoid which helps mast cells to stabilize so they do not unnecessarily release histamines. It is also a powerful and natural antioxidant that aids in cleaning up molecules known as free radicals which cause damage to cells and encourage the growth of cancers. Some foods that are high in quercetin are lettuce, tomatoes, parsley, broccoli, tea, onions, apples and citrus fruits. However, those who suffer from allergies may do best to take a quercetin supplement. The dosage recommended is about 1000 mg daily taken on an empty stomach. Start taking this about six weeks before allergy season. If you have any liver disease don't use quercetin.