For mosquito bites, using your fingernail press an X directly over the center of the bite. This helps to dissipate the anti-coagulant that the mosquito injects into you... it is actually the anit-coagulant which makes you itch. Also, Cortaid 10 is very effective for itching from mosquito and other types of bug bites. I'm very fortunate... for some reason mosquito bites don't make me itch! (They also don't find me appetizing, because I take brewers' yeast tablets regularly.