I have been bitten by a whole variety of bugs in the last few days. 
On Tues it was a horse fly biting my ankle (owww) and my left forearm, on Thurs some sort of midgie bit me 3 times on the right arm while I was out for a walk, and I lost the dog yesterday and wound up pushing through tall oil-seed rape in a vest-top at dusk, so God only knows what bit me then, but I have bites all over my shoulders and one on my boob. I have more bites on my thighs and tummy - think these may be from harvest mites brought in by the dog, who then lies on my bed. I'm covered in lumpy red spots and DD is being christened in 2 weeks and I want to look presentable and not like I have fleas!
What can I do? Please recommend bite treatments to stop the itching/reduce the redness and swelling, and also possible prevention techniques, bearing in mind that I'm bf a 5 month old so some chemicals may be off-limits.