Hamlet..I fully sympathise I have been bitten for weeks now .First time on my leg which turned very nasty and I was on anti-biotics ,then they struck again last week same place and my arm, same reaction. This time my gp gave me cortisone cream and taking antihistamine as well. Then the little Ba****** got me this morning on my hand which now looks like an inflated rubber glove and I'd just covered myself with insect repellant.I'm so fed up with it,never had this sort of reaction ..terrible itching burning skin red turning to purple .I can only put it down to the fact that this summer Ihave been using the outdoor gym in Peckham Rye park every morning and walking round the park so am a prime target me thinks!.