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Antihistamines are usually for short-term treatment. Chronic allergies, such as allergic asthma may include health problems which antihistamines alone cannot treat. [ 9 ] The routes of administration of antihistamines are usually oral, intranasal , intraocular and topical .
Cold urticaria (essentially meaning cold hives) is a disorder in which large red welts called hives (urticaria) form on the skin after exposure to a cold stimulus. [1] The hives are usually itchy and often the hands, feet and other parts of the body will become itchy and swollen as well.
Antihistamines are usually for short-term treatment. [1] Chronic allergies increase the risk of health problems which antihistamines might not treat, including asthma, sinusitis, and lower respiratory tract infection. [1] Consultation of a medical professional is recommended for those who intend to take antihistamines for longer-term use. [1]
What is the cold sore virus? Cold sores on the lips, face, and sometimes the genital area are caused by infection with HSV-1. By contrast, HSV-2 causes cold sores on the genitals.
Topical antihistamines are not advised as there might be a second skin reaction (treatment associated contact dermatitis) from the lotion itself. The other symptoms caused by allergic contact dermatitis may be eased with cool compresses to stop the itching. It is vital for treatment success that the trigger be identified and avoided.
As of 2007, it was the most commonly used antihistamine for acute allergic reactions in the emergency department. [23] By injection, it is often used in addition to epinephrine for anaphylaxis, [24] although as of 2007 its use for this purpose had not been properly studied. [25] Its use is only recommended once acute symptoms have improved.