My friend just sent me several photos of what looks like insect bites on his legs, one of which has blisters around it. He says his leg feels hot and very itchy. He sat it some grass last night but has had one of the bites for several days. I've told him to take some Piriton and get some antihistamine cream, but is that the right advice?
I would have said that is the advice given by mainstream comments on insect bites.......quite correct.
However, I would not bother with Piriton by mouth and would substitute the antihistamine cream with 1% hydrocortisone cream.
If the hotness and redness spreads up his legs and he feels hot and unwell in himself then i would suggest he sees his GP or goes to A&E as he may well require antibiotics.
Something similar happened to me. I didn't have blisters but my leg was hot,red and swelled. I went to see my pharmacist and he sent me to A&E, where I had blood tests etc. Nothing showed up, Dr thought I might have been bitten by a spider.