If you have an allergic reaction, the first thing to do is remove yourself from the trigger causing the allergic reaction. With that being said, the steps you need to take are dependent on your particular allergy and the allergen you are reacting to. As such, if you are having an allergic reaction to pollen, mold, animal dander, or another airborne irritant, you should remove yourself from the area where the trigger is to an allergen-free area. If your symptoms persist, it may be helpful to use an anti-allergy medication or remedy as directed by your doctor or visit an urgent care clinic for further medical guidance and care. In contrast, if you are having an allergic reaction to an insect bite or sting or from something you ate, you may need epinephrine to mitigate the allergic reaction. For a food allergy, you should also stop eating the food allergen and avoid it in the future. If symptoms persist or you do not have epinephrine, you should visit an urgent care clinic or emergency room to prevent anaphylactic shock and receive help with improving your symptoms. As mentioned, it is essential that you go to an emergency room for an allergic reaction if your symptoms are potentially life-threatening or you are experiencing anaphylactic shock.