Allergies, also known as "allergic reactions," are tissue damage or physiological dysfunction caused by the body being stimulated by one or more substances (also known as allergens). The causes of allergies are not well understood and may be related to genetic factors. In most cases allergic reactions are not serious, but sometimes fatal anaphylaxis can occur. If there is an abnormality in the immune system, anything can become an allergen.

Clogged and runny nose

Allergies to dust and pollen can manifest as: clogged nose, itchy eyes and nose, runny nose, swollen and watery eyes, cough, skin reactions: flaking, itching, peeling, rash.

Vomiting, swollen tongue

Allergy to food can manifest as vomiting, swollen tongue, tingling in the mouth, swelling of the lips, face and throat, stomach cramps, shortness of breath, rectal bleeding, itching in the mouth, diarrhea.

Wheezing, swelling

Allergies caused by insect bites: wheezing, swelling at the site of the sting, sudden drop in blood pressure, itchy skin, shortness of breath, restlessness, hives that spread to the body as a red and very itchy rash, dizziness, coughing, tightness in the chest, anxiety.

Cough and runny nose

If the children cough and runny nose, but there are no other symptoms, it may not be a cold, but allergies, oh, especially small babies because the gastrointestinal system is not yet developed, especially easy to be allergic to the common easy to cause allergies to food are eggs, milk, soy, seafood, peanuts, wheat.