If you are experiencing an allergic reaction, the best course of action will depend on the severity of your symptoms. Here are some general steps you can take:

1. Identify and avoid the allergen if possible.
2. Take an over-the-counter antihistamine to reduce itching, swelling, and hives.
3. Take aspirin to relieve pain.
4. Use a saline sinus rinse to clear the airways if allergies cause sinus problems.
5. Apply ice packs on hives, swelling, or insect stings for 10 minutes at a time.
6. Use topical corticosteroid creams or tablets, moisturizing creams, or cold compresses to reduce swelling, redness, and itching.
7. Seek medical attention if OTC drugs dont work, or if you have an allergic reaction to medication.
8. If you experience a severe allergic reaction (anaphylaxis), call 911 immediately and use an epinephrine injector if available.

Remember, if you have allergies, its important to work with a healthcare provider to identify triggers and develop a treatment plan that works for you.