The seriousness of an allergic reaction cannot be undermined because it can be very sudden and violent, sometimes ending in the death of the victim. Allergens in the environment cause uncomfortable symptoms in a person which in turn result in an allergic reaction. Symptoms like skin rashes, hives, and itching, sneezing, or watery eyes are allergic reactions that can occur within seconds of exposure to pets or bee stings, dust particles, strange vegetation and rare foods. People who react more aggressively develop swelling of their tongue, wheezing, breathing seizures, tightness in the chest, vomiting or even unconsciousness.

Patients have been known to lapse into anaphylactic shock and sometimes sudden death if they fail to get medical help within fifteen minutes of a very violent allergic reaction.
Death or anaphylactic shock can result in more severe allergic reactions if the person is not given medical attention within mere minutes of exposure. There are some quick reactions, and there are some delayed ones that can take up to twenty-four hours before the first symptoms appear. The chances of a person getting a severe allergic reaction increases when he is exposed frequently to an allergen. Reactions can happen within a minute, an hour, or even a day after exposure. Severe allergic reactions occur on the occasion of recurring contact with an allergen, involving less and less exposure to trigger the reaction. Immunotherapy and asthma treatments are more extreme measures taken to counter environmental and pet allergies in addition to various medications like decongestants and antihistamines like Benadryl. Benadryl is an antihistamine that, like any decongestant, helps to relieve symptoms of environmental and pet allergies, but some opt for further measures like asthma treatment and immunotherapy.But here are other treatments that can be bought over the counter Claritin, Chlor-Trimeton, Dimetane, Zyrtec, and Tavist. Ocu-Hist is an OTC eye drop.

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