16
Jan
How Long Does Antibiotic Allergic Reaction Last. 30 years experience Pediatric Allergy and Asthma. Typically hives due to a medication will last for only a few days. It usually lasts for a couple of hours after taking immediate treatment. Most symptoms appear within a few hours after sun exposure.
Symptoms include swelling vomiting coughing and anaphylaxis. Most symptoms appear within a few hours after sun exposure. Typically it takes from 12 hours to 3 days. So make sure to get medical help if you have any allergy symptoms during or within a couple weeks after antibiotic use. Even with treatment symptoms can last 2 to 4 weeks. Less than one week.
So make sure to get medical help if you have any allergy symptoms during or within a couple weeks after antibiotic use.
If the exposure to the allergen continues such as during a spring pollen season allergic reactions may last for longer periods such as a few weeks to months. A severe allergic reaction is known as anaphylaxis and usually occurs within an hour of taking an antibiotic. They can last about a week or more with the effects sometimes outlasting the antibiotic cycle by several days or beyond. Most symptoms appear within a few hours after sun exposure. However there are indications that frequent antibiotic use does make patients more susceptible to developing allergies. He will treat any allergic reaction that you have.