Updated: July 6, 2025

Deer flies are notorious pests in many parts of the world, especially during warmer months. Their bites can be painful, itchy, and sometimes lead to more serious skin reactions or infections if not treated properly. Understanding the best practices for treating deer fly bites is essential for anyone who spends time outdoors or lives in areas where these insects thrive. This article will explore effective methods for managing deer fly bites, reducing discomfort, preventing complications, and promoting healing.

Understanding Deer Fly Bites

Deer flies belong to the Tabanidae family and are closely related to horseflies. They are most active during late spring and summer, particularly near water sources such as lakes, rivers, marshes, and wooded areas. Unlike mosquitoes that pierce the skin, deer flies have scissor-like mouthparts that slice the skin to feed on blood. This method of feeding causes more pain and bleeding compared to other insect bites.

When a deer fly bites, it injects saliva containing anticoagulants to prevent blood clotting. This saliva can trigger allergic reactions in some individuals, leading to swelling, redness, and intense itching. Additionally, because the bite wounds are open and exposed, they can become infected if not cleaned properly.

Symptoms of Deer Fly Bites

Typical symptoms include:

  • Sharp pain at the moment of the bite
  • Redness and swelling around the bite area
  • Itching and irritation that can last for days
  • Small bleeding wounds due to skin slicing
  • In some cases, blistering or the development of hives
  • Rarely, systemic allergic reactions such as fever or swollen lymph nodes

If symptoms worsen or you notice signs of infection (increased redness, warmth, pus), seek medical attention promptly.

Immediate First Aid After a Deer Fly Bite

Taking prompt action after a deer fly bite can minimize discomfort and reduce the risk of infection.

1. Clean the Bite Area

Wash the affected area thoroughly with soap and clean water as soon as possible. This helps remove any bacteria or dirt that may have entered through the broken skin.

2. Control Bleeding

Since deer flies slice the skin with sharp mouthparts, minor bleeding may occur. Apply gentle pressure with a clean cloth or sterile gauze until bleeding stops.

3. Apply an Antiseptic

After cleaning, apply an antiseptic solution such as hydrogen peroxide, iodine, or rubbing alcohol to disinfect the wound.

4. Reduce Swelling and Pain

To alleviate swelling and pain:

  • Use a cold compress or ice pack wrapped in a cloth for 10-15 minutes at a time.
  • Elevate the bitten limb if possible.
  • Over-the-counter pain relievers like ibuprofen or acetaminophen can be taken according to package instructions.

Managing Itching and Inflammation

Itching is one of the most bothersome symptoms associated with deer fly bites. Scratching can lead to secondary infections and delayed healing.

1. Use Anti-Itch Creams

Topical treatments containing hydrocortisone or calamine lotion can reduce itching and inflammation effectively. Apply as directed on the packaging.

2. Take Oral Antihistamines

If itching is severe, oral antihistamines such as diphenhydramine (Benadryl) or loratadine (Claritin) can help reduce allergic reactions.

3. Natural Remedies for Soothing Itchiness

Some people find relief using natural remedies including:

  • Aloe vera gel: Known for its anti-inflammatory properties.
  • Baking soda paste: Mix baking soda with water to form a paste; apply to the bite to neutralize itch.
  • Oatmeal baths: Colloidal oatmeal can soothe irritated skin when added to a bath.

Preventing Infection

Preventing infection is crucial because open wounds from deer fly bites create entry points for bacteria.

Keep the Area Clean and Dry

Continue washing the bite site daily with mild soap and water. Avoid soaking in dirty or stagnant water.

Avoid Scratching or Picking at the Bite

Scratching increases the risk of breaking the skin further and introducing pathogens.

Use Antibiotic Ointments if Necessary

Applying a thin layer of over-the-counter antibiotic ointment like Neosporin may help prevent bacterial infections in mild cases.

Watch for Signs of Infection

Monitor for:

  • Increased redness or swelling spreading beyond original bite
  • Warmth or tenderness around wound
  • Pus or discharge
  • Fever or chills

Seek medical care immediately if these symptoms develop.

When to See a Doctor

Most deer fly bites heal without complications within a week or two; however, professional evaluation is necessary under certain conditions:

  • The bite becomes severely swollen or painful.
  • Signs of infection appear.
  • Allergic reactions worsen (difficulty breathing, extensive hives).
  • You develop fever or flu-like symptoms after being bitten.
  • The bite does not improve after several days of home treatment.

In rare cases, deer flies can transmit diseases such as tularemia—prompt medical diagnosis and treatment are essential in these situations.

Preventing Deer Fly Bites: Tips for Outdoor Activities

While knowing how to treat bites is important, prevention is always better than cure.

Dress Appropriately

Wear long-sleeved shirts, long pants, socks, and closed shoes when in areas where deer flies are common. Light-colored clothing is less attractive to these insects.

Use Insect Repellents

Apply insect repellents containing DEET, picaridin, or oil of lemon eucalyptus on exposed skin and clothing per label instructions.

Avoid Peak Activity Times

Deer flies are most active during daylight hours—especially around midday on hot days near water bodies—so limit outdoor activities during these times if possible.

Employ Physical Barriers

Use mesh screens on tents and protective netting over strollers or outdoor seating areas to reduce exposure.

Remove Attractants Around Home

Standing water near your property encourages deer fly breeding; eliminating pools of stagnant water reduces their numbers locally.

Conclusion

Deer fly bites can cause significant discomfort but are generally manageable with proper first aid and care. Prompt cleaning of wounds, controlling itching and inflammation, preventing infection, and seeking medical attention when needed are key steps in effective treatment. Equally important is taking preventive measures when spending time outdoors in deer fly-prone environments. By following these best practices for treating deer fly bites and reducing exposure risk, you can protect yourself from painful bites and potential complications during outdoor adventures.

Stay informed, prepared, and cautious this season to keep deer flies—and their bothersome bites—at bay!