What causes allergies?
 

I have been suffering from allergy symptoms such as sneezing, watery eyes, and red eyes. What might be causing these symptoms?

The simplest answer is that you may have developed an allergy. But only your doctor can tell you what your particular condition is!

It is terrible...I do not like such conditions

What causes allergies?
 

You have developed an allergy, which is why you are experiencing these symptoms. You can take an antihistamine to control these symptoms and offers faster relief. If it does not work, visit your doctor. He will help you find out the allergy trigger.

Depends after what you have such symptoms. For example, I have the same after eating citruses.

Common allergy triggers include:

airborne allergens, such as pollen, animal dander, dust mites, and mold
certain foods, especially peanuts, tree nuts, wheat, soy, fish, shellfish, eggs, and milk
insect sting, such as from a bee or wasp
Medicines, especially penicillin or penicillin-based antibiotics
Latex or other substances you touch that can cause skin allergies

Causes of allergies are different from other allergies which you suffer. Due to allergies, your body suffers burning.
Some of the symptoms are-
1. Watery eyes.
2. A cough
3. Blocked nose

I am allergic to peanut butter

Allergies are common, affecting an estimated 50 million Americans. But what causes them? The answer is complicated, as allergies can be caused by a variety of factors, including genetics, environment and lifestyle choices.

One of the most common causes of allergies is exposure to allergens, which are substances that can cause an allergic reaction. Allergens can include pollen, dust mites, pet dander and certain foods.

When someone is exposed to an allergen, their immune system mistakenly identifies it as a threat and produces antibodies to fight it. These antibodies attach themselves to special cells called mast cells. When the allergen is encountered again, it binds to these antibodies on the mast cells and triggers a release of histamine and other chemicals.