What do you do to prevent scaring from flea bites? Does off spray work?

Flea bites. Flea bites, like all insect bites, are an allergic reaction to the biting insect. Generally, the reaction is mild, and lasts a few days, and does not cause a large wound or area of inflammation. If you pick at the flea bite, you may create a big wound that can leave a permanent scar.. Most bites leave a discolored blemish, but these are not scars. So, prevent the bite with off, and us hc1% cream.