Several hospitals in southern Arizona keep a supply of scorpion antivenin and, in any case, the patient should be taken to a hospital as quickly as possible. In all cases the first-aid treatment should be applied and maintained until the patient is under the care of a physician. With adults, in case a physician is not available, the iced-water treatment usually proves sufficient. Generally, after 2 hours of iced-water use, there is no longer any danger, but should symptoms reappear, treatment should be resumed. Scorpion antivenin for stings of _Centruroides sculpturatus_ and _C. gertschi_ is available at the Poisonous Animals Research Laboratory, Arizona State University, Tempe, Arizona. The recommended method of treatment is the “L-C” method. The L stands for ligature and C for cryotherapy (tourniquet and ice pack treatment). _Treatment is as follows: “As soon as possible (after the sting has been received) inject intramuscularly or subcutaneously, 5 to 10 cc. of natural serum or 3 cc. of the concentrated. In serious cases, inject intravenously.” No immediate untoward results have been noted, but some cases of skin irritation develop later._ In cases of scorpion poisoning when antivenin is not available, the following treatment is recommended[12]: “_Use morphine with extreme caution. It has not been found effective in the usual doses. Barbiturates are more effective and less dangerous. Bromides in large doses are apparently of value. In those cases characterized by severe pulmonary edema (accumulation of fluid in the lungs) atropine is indicated along with general supportive measures. Compresses, using a fairly concentrated ammonium hydroxide solution, have been found helpful if applied within a few moments. If applied for the first time about 10 minutes after the sting, no apparent benefit is attained.”_ Where scorpions live Scorpions normally remain in hiding during the day, coming out in search of insects at night. The deadly species are commonly found under bark on old stumps, in lumber piles, or in firewood piled in dark corners. It is not unusual to find them in basements or in linen closets. Adults may find an unpleasant surprise in a shoe or a piece of clothing taken from a closet or dresser drawer. Legs of cribs or children’s beds may be placed in cans containing kerosene or in wide-mouthed jars. Moral: Keep your garage, basement, and premises in general, clean, tidy, and free from insects on which scorpions feed. Screen children’s cribs, and pull the sheets clear back before putting the youngsters to bed. Shake out your shoes before putting them on, and inspect sheets, blankets, or clothing which have been in closets or drawers. Black widow spider (_Lactrodectus mactans_)