I get red blotches that itch terribly on my feet when I walk in the grass, sometimes on my arms, legs, etc. just when I go outside. I have many allergies which include mosquito bites. At first I thought this was an insect bite but,,, I went wsimming in my pool yesterday and was covered in these red blotches. Showered, put witch hazel on (which seems to work better than anything else that I ve tried) and took a Benedryl. Went away in an hour or so. Any ideas?