Symptoms of an allergic reaction vary depending on the body part affected and the severity of the reaction. Some reactions affect many areas, while others affect just one area. Reactions to the same allergen vary by individual.
Symptoms of an allergic reaction include any, some, or many of the following:
Try these tips for allergy relief when you’re on vacation or traveling on
Travel Insurance: Check pollen counts at your destination. Pack your
own hypoallergenic pillow cover and allergy medicine in a carry-on bag.
No Venting: On road trips, keep the air vent closed. You'll breathe
recirculated air, not pollen or pollution.
Smart Car: Take a vacuum to your car. Pollen and dust mites can
easily cling to clothing, bringing more allergens into your home.
Skin -- Redness, itching, swelling, blistering, weeping, crusting, rash, eruptions, or hives (itchy bumps or welts)
Lungs -- Wheezing, tightness, cough, or shortness of breath
Head -- Swelling of the face, eyelids, lips, tongue, or throat; headache
Nose -- Stuffy nose, runny nose (clear, thin discharge), sneezing
Eyes -- Red (bloodshot), itchy, swollen, or watery
Stomach -- Pain, nausea, vomiting, diarrhea, or bloody diarrhea
Anaphylaxis is serious, potentially life-threatening allergic reaction which is rapid, or sudden, and potentially life-threatening.
One sign of anaphylaxis is shock. Shock has a very specific meaning in medicine: the organs of the body are not getting enough blood because of dangerously low blood pressure. This drop in blood pressure happens when the large blood vessels suddenly expand. If the drop in blood pressure is sudden and drastic, it can lead to unconsciousness, even cardiac arrest and death.
The person in shock may be pale or red, sweaty or dry, confused, anxious, or unconscious.
Breathing may be difficult or noisy, or the person may be unable to breathe.