Hi, I might be able to help with this one! I am VERY allergic to biting (and stinging) insects: major swelling, hIves, itching and scarring that goes on for weeks. Two things that work for me: 1. OFF unscented non-aerosol (pump spray) with DEET - I’m in FL and the natural stuff doesn’t do anything to deter mosquitoes; DEET’s the only way to go. I just wash it off as soon as I’m done with outdoor activity. 2. Hemorrhoid gel If I do get bit. Cream is fine, too, but for some reason gel seems better. NOTHING relieves the swelling and itching as well as that! Oral Benadryl is always great, too, but for instant relief on the spot, trust V: hemorrhoid gel is where it’s at.