Allergy Symptoms

People can be allergic to almost anything, from food to fabrics to animals. The immune system identifies the things you are allergic to and then reacts to these foreign materials or allergens by releasing histamines and other substances to protect you. But these substances are the cause of allergy symptoms. Allergy symptoms affect everyone differently and can be mild or life-threatening, such as in anaphylaxis.

Skin Reactions

• Many allergic reactions involve skin rashes, hives and itchiness. In some cases, the skin can peel or flake.

Swelling

• Edema or swelling can occur almost anywhere. The face, tongue and throat are common areas, as are the sites of insect bites.

Sneezing

• Sneezing is a common symptom of hay fever, along with itching and runny nose.

Congestion

• Nasal congestion occurs frequently with hay fever and some food allergies.

Eye Reactions

• Some allergy reactions make the eye swollen, itchy, red and/or watery.

Respiratory Problems

• Wheezing and shortness of breath are common symptoms. Coughing and tightness in the chest also occur.

Extreme Symptoms

• With anaphylaxis, there could be loss of consciousness, feeling faint, swollen airways, nausea, vomiting and rapid pulse.