how long can a food allergy reaction last
Posts: 98. Re: how long does food allergy last. hi! my reactions can last for minutes, hours or even days. if it is one I am very allergic to and my intestines are affected, it can last for over a week. Also if it causes congestion that can take quite some time to subside.I'd say the average is app. 2 days.i! my reactions can last for minutes, hours or even days. if it is one I am very allergic to and my intestines are affected, it can last for over a week. Also if it causes congestion that can take quite some time to subside.
Your body then releases a host of chemicals. One of them, histamine, is responsible for the symptoms that appear on your skin. Depending on the type of reaction and its severity, the duration of symptoms can vary from days to weeks. Hives are the red, itchy bumps that show up due to a food or drug allergy.They normally go away after a few days. However, some cases of chronic hives can last for months or years.Until hives go away, you can relieve symptoms using antihistamines.epending on the type of reaction and its severity, the duration of symptoms can vary from days to weeks. Hives are the red, itchy bumps that show up due to a food or drug allergy. They normally go away after a few days.