On Tuesday evening, I was, I presume, bitten by an insect of some kind on my thigh. When I went to bed, I noticed a red pin-prick and thought nothing of it.
By morning, the pin prick had grown to a red area about half an inch wide by an inch long, with a pinkish circle all round. The red area is not tender and does not itch, but the whole leg aches a little. By yesterday evening, the red area was about an inch in diameter and the pink area all round was probably five inches in diameter and it's about the same this morning.
I've put some antihistamine cream on it, but it doesn't seem to have had any effect. Should I be concerned and seek medical attention or is it all perfectly straightforward and will heal in its own time (don't want to waste medical professionals' time if it's nothing to worry about!).
Thanks!