MOM WORRY: If my child gets hand, foot, and mouth disease, will she be scarred by the rash spreading all over her body?

Facts: Nope. The small, red blisters that appear on the hands, feet, and often the throat with hand, foot, and mouth disease usually look a lot worse than they are, and they won't spread or cause scarring. In fact, the spots will naturally disappear when the Coxsackie virus that causes the illness runs its course, usually in about five days. In the meantime, though, the virus is highly contagious. "We often see outbreaks of the Coxsackie virus in day camps during the summer," says Robert Fink, M.D., an associate professor of clinical pediatrics at the Eastern Virginia Medical School, in Norfolk. This is because it can be caught from hand-to-hand contact (for instance, when kids are in close quarters at camp) and from saliva, which kids are exposed to when playing together in the pool or with water toys.

If your child does catch hand, foot, and mouth disease, she may have a fever and a nasty sore throat, so make her as comfortable as possible by giving her acetaminophen or ibuprofen for the fever and pain. Also, encourage her to eat ice pops and drink whatever she's willing to swallow -- including watered-down juice and milk shakes -- to prevent dehydration, which is often a concern when a sore throat is severe. If you're worried your child is dehydrated, call your pediatrician.

MOM WORRY: Is eating a hamburger that's not cooked enough a surefire way to get food poisoning?

Facts: Not necessarily. While an undercooked hamburger is a concern when it comes to food poisoning -- courtesy of the infamous E. coli bacteria -- an increasing number of food-borne illnesses are actually caused by produce. That's because bacteria can be spread from animal products to fruits and vegetables through contaminated water or soil -- and, of course, there can be cross-contamination in the kitchen. And once the bugs are there, they often stick tenaciously to the textured surfaces of produce, ultimately making you or your kids sick. Summer is a particularly dangerous time: When people bring food to parks and beaches, and don't keep it cool, bacteria can grow and multiply even more quickly.

The fix? Practice excellent hygiene when preparing food.

• Scrub your hands with soap and warm water before touching any food -- and do it again before switching from handling meat to making a salad, for example.
• Wash whatever produce you buy, and don't assume it's clean because it's in an individual container or package. To prevent bacteria on the outside from getting inside, wash the outer shell of melons and the like before slicing into them.
• Have separate cutting boards -- one for meats, one for produce, and one for breads.
• Always keep perishable food refrigerated until it's going to be eaten.

If your child does get a food-borne illness, she'll probably experience diarrhea, cramping, and perhaps vomiting, sometimes along with a fever, usually for two to three days. To keep her hydrated, give her plenty of fluids, especially electrolyte solutions (such as Pedialyte), clear sodas like ginger ale, or white grape juice. If the symptoms persist or if her eyes become sunken, her mouth is very dry, or she becomes listless, call your doctor right away -- she may need intravenous fluids to replace those she's lost. Also, if your child has bloody diarrhea, take her to the doctor immediately; this is a sign that she could have a more serious infection that may require quick treatment with antibiotics.

Stacey Colino, a mom of two, writes about health and psychology for many national magazines.