I got bitten by a horsefly last monday, bit itchy not too bad put a bit of savlon on thought nothing about it, tuesday evening my wrist started to swell a bit and get more itchy, by wednesday morning my hand was twice it's normal size, and very painful due to the skin stretching so much.
So i went to the doctors, and i hadn't noticed but there were red lines travelling up my veins(which he marked the end of with a biro) towards my armpit ( nymph gland ) the doctor put me on the strongest anti-biotics he could, and said to take a double dose straight away and that if the track marks(red lines) moved any further up my arm, i would have to go in to hospital on a drip, The whole of my forearm had swollen up as well, it is now friday and the swelling is finally going down slowly, but after the pain of wednesday night i would urge anyone bitten by a horsefly to see the nurse or a doctor, apparently they are carrying something different this year, a friend in the hospital told me today. Please don't wait for it to go on it's own, it can be dangerous.