I have been bitten by a Yellow Fly. This is not the first time - I get bit two or three times each summer. This time, the reaction was not just swelling and intense itching.

Instead, I have the intense itching but my skin is errupting in new spots every few days about 1-1.5" apart, without further bites. I started with one bite and now have what appears to be 7 - 8 bites in the area and new bumps are coming up every few days. This is on my calf and itch incessently. I am taking Bennidrill.

What could it be?