Allergies are quite common and can be triggered due to a wide variety of reasons. Here is a composite list of the different types and main triggers of allergies:

Respiratory allergies
The common culprit of this type of allergy is due to change in seasons. In each of these allergies, the triggers are the change in the weather leading to the onset of various other allergens such as pollen, mold, dust mites, and other environmental factors, including temperature changes.

Another well-known allergy caused by pollen is hay fever, and this can occur due to the change in seasons. The statistics show that about 25 million Americans suffer from pollen allergies due to grass, weeds, or trees. Mold allergy, on the other hand, is when the individual has no resistance to mold growth or when there is excessive mold growth. There are also respiratory allergies caused by dogs and cats. In all of these types of allergies, the first reaction in the body is nasal congestion, sneezing, itchy and watery eyes. The best way to treat them is to get immediate over-the-counter medication unless the symptoms are severe.

Food allergies
Food-based allergy symptoms can be the result of both an actual allergy and intolerance. They are bound to affect everyone at some point in time in their entire life. Every time you have an unpleasant reaction to food, it doesn’t have to be an allergic reaction; however, getting medical advice when it occurs repeatedly will tell you whether that is an allergy or not. This will also ensure that you stay away from specific foods that are causing discomfort and take the required medication to avoid the condition from worsening. Some of the well-known food allergens are milk, casein, egg, wheat, fish, shellfish, nuts, sulfite, and soy. While you can avoid these ingredients, sometimes you may accidentally consume them. It is better to get immediate medical attention in such cases since leaving them untreated can only cause further trouble to the body.

There is also quite a lot of skin-related allergies. Some of the main types and triggers of these allergies are contact dermatitis, hives, allergies due to oak, poison oak, and sumac, insect stings, and even overexposure to the sun. There are also certain cosmetic allergies and nickel allergy. Other common types of allergies include eye allergies, drug allergies, and even aspirin and penicillin allergies.

The best way to tackle an allergy is to get immediate medical help so that you are aware of the condition in the future. If you are prone to frequent allergies, you should carry your medication to avoid any complications.