Allergy Symptoms - Allergies

Allergy symptoms can be categorized as mild, moderate, or severe.

Mild Allergic Reactions
Mild allergic reactions can include:

Rash
Itchy, watery eyes
Congestion
Mild reactions do not spread to other parts of the body.

Moderate Allergic Reactions
Moderate reactions can include symptoms that spread to other parts of the body, including:

Itchiness
Difficulty breathing
Severe Allergic Reaction (Anaphylaxis)
Anaphylaxis is a rare, life-threatening emergency in which the body's response to the allergen is sudden and affects the whole body. It may begin with sudden itching of the eyes or face and within minutes progress to more serious symptoms, including:

Varying degrees of swellings that can make breathing and swallowing difficult
Abdominal pain
Cramps
Vomiting
Diarrhea