Horse flies are the nasty fly of summer. Yes, they are large with beautiful eyes and silent in flight, but they are a force to be reckoned with. Horse flies are also known as deer flies, clegs and a host of other rude things by those who have just been bitten. The flies are most active in western Europe and the UK during the summer months of June and July, just as everyone is getting into clothes that leave more flesh than usual, visible and available for the hungry horse flies to extract their next blood meal. They do this by quite literally sawing through your skin - Nasty!
No universally effective methods of Tabanid (horse fly) control exist, and you can never cover up enough to prevent a persistent fly. Your best defense is to go indoors, but that's just silly, which is why most people just live with occasional bite. For those of us who have a severe allergy to fly bites, an aspivenin extraction device used immediately after being bitten will prevent bacteria spreading into the surrounding tissue and causing infection. We use these devices with great success every summer! A side benefit of extraction is the reduction in itching, skin damage and scarring. Antihistamine creams also do wonders for some people.