07
Mar
How Long Does A Drug Allergic Reaction Last. It would also depend on whether it was an immediate allergic reaction or one that developed over time. Some medications leave your system after a few hours and other stick around for a while. 26 years experience Family Medicine Days to weeks. Depends on the type of reaction.
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. It should probably fade fairly quickly if it was a first time use reaction. Less than one week. Typically hives due to a medication will last for only a few days. Most people with drug allergy recover very quickly once the medication is stopped although the rash can take 10-14 days to fade. The time varies from person to person.
26 years experience Family Medicine Days to weeks.
It should probably fade fairly quickly if it was a first time use reaction. With the use of Benadryl. How long does it usually take for hives to disappear after a reaction to a drug. The severity and duration of drug reactions varies between individuals and the inciting drug. Depends on the type of reaction. Allergic reactions may last for varying lengths of time.