Kevin, usually scratching causes more itching; however, there may be some relief due to the fact that many insect bites that itch do so because there is extra fluid buildup beneath the dermis (skin). Scratching stimulates capillary circulation at that area and helps initiate fluid flow and elimination. If there is no actual fluid buildup, then the itch is probably due to nerves, in which case there wouldn't be much advantage to scratching, unless it satisfies you psychologically, i.e. "I took action against this itch!" I find I can control the need to scratch by mentally acknowledging the stimulus and then forgetting about it--it's amazing how quickly the itch disappears!