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Allergies occur when your immune system is triggered by envirionmental factors it should ignore--for example, pollen in the air, or dander on a cat or dog--and creates cells to fight against them. An allergic reaction typically causes itching, congestion, or drainage, and ...Read more
Any allergy can.: Urticaria (hives) is due to true allergy only 10% of the time. Any type of allergy can cause the skin rash. Foods & drugs are the most common. Other causes can be physical (direct pressure on the skin; cold; change in skin temperature) or underlying diseases like thyroid or auto-immune disorders, infections, cancer, etc. Urticaria that lasts up tp 4 weeks is considered acute. Longer is chronic. ...Read moreSee 1 more doctor answer
Often is the cause: Pollen released from flowers and plants is often a cause for hay fever (seasonal allergies). Spring & summer time is the most challenging time for allergy sufferers. Some people find relief by eating honey that is produced locally because it can help build some tolerance to the pollen that causes one's hay fever. ...Read moreSee 1 more doctor answer
Hay fever reactions?: While it is possible to see a variety of symptoms with seasonal allergies, such as sneezing, nasal congestion, eye redness, swelling and wheezing, a true anaphylactic reaction is rare. The severe, sudden onset of allergic symptoms associated with anaphylaxis might be seen as a reaction to an allergy shot to treat hay fever, but more commonly is seen with foods, medications, and insect stings, . ...Read moreSee 1 more doctor answer
What?: This is inflammation of the tissues of the lining of the nasal passages induced by infiltration by immune modulating cells as a result of "allergic" reactions to a foreign chemical antigen. It results in tissue swelling, fluid production, itching, redness and general misery with congestion, coughing and other symptoms. ...Read more
Anything is possible: It all depends on what you mean. Anaphylaxis, as defined by the involvement of more than one organ system, could surely cause anaphylaxis by causing asthmatic and urticarial/angioedema reactions. In terms of causing hypotension, i would assume that it is possible, but is rarely seen. ...Read moreSee 1 more doctor answer
Allergic sensitivity: Allergic rhinitis is most commonly due to sensitization to pollens (tree, grass or weeds), animal dander, or dust mite; and even some indoor sensitizers like cockroach, mouse or fungi. The body makes "allergic antibody", or IgE, against the allergen. When inhaled/deposited on the mucosa, immune cells in the nose become activated causing the typical constellation of symptoms. ...Read more
What is the best allergy medication for seasonal allergies like pollen, dust, ragweed, hay fever, dogs, cats, hamsters etc?
There are a few: Not one medicine is better than another....Everyone's system is different...Some people get better with allegra..Others with zyrtec..Others with Claritin or even benadryl (diphenhydramine). These are now over-the-counter...Try some and read the labels. If you don't feel better, see a board certified allergist (www.Acaai.Org). Good luck. ...Read moreSee 1 more doctor answer
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