Black flies are insects that typically feed on the blood of humans and other mammals for sustenance. There are thousands of black fly species known, and some of them are pathogenic, causing diseases such as river blindness in some parts of Africa and other tropical areas. Black flies are typically considered a nuisance to humans, as they can be very pesky when they bite. In the wet climates of
. northern North America, black fly numbers can surge during the late spring to summer months, biting those who are involved in outdoor species such as gardening or boating. These bites do not transmit disease in the United States, but can cause significant harm to humans and livestock if bites occur in large numbers. Allergic reactions as severe as death have been reported from excessive bites. The bites are also typically very itchy and slow to heal, and can be swollen. The best remedy for a black fly bite is to take care in not getting one in the first place. Black flies have been known to be attracted to sweet scented perfumes, candies and sugary drinks. Unsuspecting victims have been bitten by or swallowed black flies before from not inspecting their drinks before consuming them. However, if prevention fails, there are a few remedies to a black fly bite. Aloe vera, for one, can be used as a topical agent to soothe the skin and mitigate the itching that can accompany a black fly bite. Also, witch hazel, in addition to being useful for application to cuts and burns, can be applied on top of a bite. There are even some reports of onions being effective in reducing inflammation and swelling in a black fly bite. If difficulty breathing or hives all over the skin occur with a black fly bite, it is better to seek the care of a health care professional, as these may be signs of a serious allergic reaction. http://www.idph.state.il.us/envhealth/pcbitingflies.htm or http://www.homeremedyhaven.com/articles/alternative-medicine/home-remedy-for-black-fly-bites.html
