Allergy: Symptoms & Signs

allergic symptoms
allergic symptoms

Allergies are exaggerated immune responses to environmental triggers known as allergens. Allergies are very common, and about 50 million people in North America suffer from allergies. One of the most common forms of allergy is allergic rhinitis (“hay fever”), which produces symptoms like.

The symptoms of hay fever can, in turn, lead to fatigue and lethargy. Other types of allergic reactions can involve the skin (hives and itching). Anaphylactic shock is a severe form of allergic reaction that can be life-threatening. In anaphylactic shock, there is swelling of the throat and difficulty breathing. Asthma is also related to allergies in many cases.

The symptoms of allergies can sometimes resemble those of other conditions. The common cold and the flu can cause respiratory symptoms similar to allergies. Typically, allergy symptoms are associated with a specific time of year or exposure to an allergen.

Causes of allergies
Allergies result from an inappropriate or misguided reaction to foreign substances (usually harmless substances). Allergens are the substances that trigger allergies. Pollens are the allergens that cause hay fever, one of the most common types of allergic reaction.

Summary of Common Allergy Symptoms by MedicineNet Staff
A review of our Patient Comments indicated that many people with allergies have similar symptoms and signs. Oftentimes, an allergy attack began with itchy eyes followed by facial swelling, particularly of the eyes and lips. Some patients mentioned that the itchiness occurred all over their bodies, and sometimes they developed hives. Several people indicated that their symptoms felt flu-like, in that they experienced coughing, fatigue, and the sensation that they had a fever. Read on to learn more about allergy symptoms in our Patient Comments.
Related Symptoms & Signs
Runny Nose
Watery Eye
Cough
REFERENCE:

WebMD.com. Allergy Types.

Medically Reviewed by a Doctor on 10/15/2018
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Allergy Symptoms and Signs
Hives
Itching
Nasal Congestion
Rash
Reddened Skin
Runny Nose
Scratchy Throat
Shortness of Breath
Sneezing
Swelling of the Throat
Watery Eyes
Examples of Medications for Allergy
azelastine hydrochloride and fluticasone propionate (Dymista)
cetirizine, Zyrtec, Zyrtec Allergy, Zyrtec Hives
Claritin (loratadine) vs. Zyrtec (cetirizine)
diphenhydramine, Benadryl
fexofenadine, Allegra, Allegra Allergy, Allegra Hives, Children’s Allegra, Mucinex Allergy
loratadine and pseudoephedrine (Alavert Allergy & Sinus, Claritin-D, Claritin-D 24 hour)
loratadine, Claritin, Claritin RediTabs, Alavert, Claritin Hives Relief, Children’s Claritin
Symptoms & Signs A-Z List
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Allergies Resources

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