Allergies are reactions from the body to a substance or substances it perceives as harmful. Allergies can vary in severity, from mild sniffles to life-threatening anaphylaxis. The length of time that an allergy can last depends on the severity of the reaction and whether or not it is treated properly.
Severity of Allergy
Mild allergies, such as hay fever, can last for days, weeks or even months. These types of reactions generally cause mild symptoms such as runny nose, watery eyes or sneezing. While these can be uncomfortable, they are usually not dangerous and can be treated with over-the-counter medications.
Severe allergies, such as those to certain foods or insect bites, can cause anaphylaxis. Anaphylaxis is a potentially life-threatening condition that can cause difficulty breathing, swelling of the throat and face, and a drop in blood pressure. It must be treated immediately with an epinephrine injection. If treated properly, the effects of anaphylaxis usually last no longer than a few hours.
Treatment
The length of time that an allergy lasts will depend largely on how it is treated. For mild allergies, over-the-counter medications can help reduce symptoms and improve quality of life. For more severe allergies, it is important to see a doctor who can diagnose the condition and prescribe medications that can help reduce the duration and severity of an allergic reaction.
For allergies that cause anaphylaxis, it is important to carry epinephrine with you at all times. This medication can be lifesaving in the event of a severe reaction. It is also important to wear medical alert jewelry to alert medical personnel in case of an emergency.
Prevention
The best way to prevent allergies is to avoid the allergen that causes them. This can be difficult to do in some cases, so it is important to be aware of potential allergens and take steps to avoid them. It is also important to be aware of the signs and symptoms of an allergic reaction so that it can be treated quickly and effectively.
