To name any one reason for the appearance of signs of allergy on the body can not even the most experienced professionals. All the symptoms become the consequence of not quite normal reaction of the organism to this or that stimulus. But what exactly will be regarded as an allergen, and how the immune system will react to it - a mystery.
The main types of allergy on the body
Types of allergies are usually distinguished depending on what it was caused by:
- The food form of the disease is very common. With such an allergy, a rash occurs throughout the body. Small pryshchiki strongly itch. If there is damage to the gastric irritant, other than dermatitis, symptoms such as nausea, abdominal pain, diarrhea will appear. Through the nose into the body food allergens are extremely rare. But when this all the same happens, a runny nose may begin.
- Large red spots on some parts of the body indicate an allergy caused by cold. The skin is often flaky. In the most severe cases, swelling develops. Some people suffer from the so-called pseudoallergic cold cold or conjunctivitis.
- Photodermatitis is a specific reaction of the body to ultraviolet rays.
- Redness on the body and swelling can be accompanied by an allergy to medicines and vaccinations. To understand that it was the drug that triggered the reaction is not difficult - it starts soon after the drug is taken or injected.
- The whole body begins to scratch and when allergic to insect bites and wool or saliva of animals. In addition to these signs, nasal congestion, lacrimation , fever, severe cough, conjunctivitis are observed.
Often the symptoms disturb the pregnant. In this period of life, hormonal changes are all to blame. Dangers such allergic reactions do not represent.