What is an Allergic Reaction?
An allergic reaction is an overreaction of the immune system to a foreign substance, also known as an allergen. Allergens can be anything from food and pollen to animal dander and dust. When a person comes into contact with an allergen, their body releases histamines, which cause a range of symptoms. These can include sneezing, coughing, itchy eyes, and a rash. In some cases, an allergic reaction can be life-threatening.
How Long Does It Take for an Allergic Reaction to Clear Up?
The length of time it takes for an allergic reaction to clear up depends on the severity of the reaction. For mild reactions, symptoms may last for a few minutes or hours. For more serious reactions, however, symptoms can last for several days or even weeks. In some cases, it may take months for the reaction to completely clear up. It is important to speak to a doctor if the reaction does not improve over time or if symptoms become worse.