Here are some things you can do:
* Wash the affected area with soap and water.
* Apply a cold compress to reduce swelling.
* Take over-the-counter pain relievers like ibuprofen or acetaminophen.
* If you have any signs of infection, such as pus, redness, or swelling that spreads, see a doctor immediately.
It's important to note that horse fly bites can sometimes cause serious allergic reactions, such as anaphylaxis. If you experience any of the following symptoms, call 911 immediately:
* Difficulty breathing
* Swelling of the face, lips, or tongue
* Hives or rash
* Dizziness or lightheadedness
Please remember that I am an AI chatbot and cannot provide medical advice. If you are experiencing a severe reaction to horse fly bites, please seek immediate medical attention.