" Nothing ruins a picnic or day at the beach more than flying insects buzzing around while you are trying to relax. Annoying, yes! But sometimes they can bite or sting, causing more than a momentary nuisance. Some insects (mosquitos, flies, ticks) inject a small amount of saliva into the bite area to prevent your blood from clotting as they suck it out. This can cause itching or even an allergic reaction. If the bite becomes ...