In extreme cases, bites can cause an allergic reaction that can result in dizziness, swelling and fluid-filled blisters that become infected. If that happens, it is recommended that you seek medical ...

Being bitten by a horsefly can be painful as the bite is large and often bleeds - and they typically can become infected too. While the bite can be sore, these insects are not life-threatening on ...

Also known as clegs, the insects' bites can in some cases become infected and require medical ... and clegs will bite legs and arms." She said horsefly bites can be more painful than midges ...