The best way to stop an allergic reaction depends on the severity of the reaction and the allergen involved. For minor allergic reactions, over-the-counter (OTC) antihistamines and decongestants can provide relief. Antihistamines work by blocking histamine receptors, preventing symptoms like hives. Decongestants shrink swollen blood vessels, reducing symptoms like nasal congestion.
For more severe allergic reactions, immediate medical attention is crucial. Antihistamines and epinephrine (adrenaline) are often used to manage symptoms. In some cases, corticosteroids may be prescribed to reduce inflammation.
Here are some general steps you can take to stop an allergic reaction:
- Identify and remove the allergen: If you know what triggered the reaction, remove yourself from contact with it.
- Take antihistamines: OTC antihistamines like loratadine (Claritin), cetirizine (Zyrtec), or fexofenadine (Allegra) can help reduce symptoms like itching, sneezing, and runny nose.
- Use a cold compress: Apply a cold compress to the affected area to reduce swelling and inflammation.
- Seek medical attention: If the reaction is severe or does not improve with home remedies, contact your doctor or go to the emergency room immediately.
Remember, prevention is key to managing allergies. Working with your doctor to develop an allergy management plan can help you avoid allergic reactions in the first place.