Whether you're taking a trip alone or with your family, it's easier to get sick when you're in a new place because your body hasn't had a chance to _ to the food, water, and air in a new environment. Read the following tips on keeping your travel experience as healthy as possible. Safe foods and drinks What foods are safe to eat? Foods that have been boiled are generally safe, as well as fruits and vegetables that have to be peeled before eating. Avoid eating uncooked or undercooked meat. Stay away from foods that require a lot of handling before serving. Drink only bottled water when traveling. If you have to use the tap water, you should boil it first. You can take it with you When you're packing, taking some painkiller and diarrhea medicine is a good idea. It's also a good idea to pack some allergy   medicine even if you don't take it at home, because people sometimes unexpectedly develop allergic reactions in a new environment. Write it all down Before you leave your sweet home, create a medical history form that includes the following information: your name, address, and home phone number as well as a parent's daytime phone number your blood type a list of any ongoing health problems, such as heart disease, diabetes, or AIDS a list of current medicines you are taking a list of allergies to medicine, food, insects, and animals the name, address, and phone number of a relative other than your parent It also helps if you have some basic emergency medical knowledge, not only for yourself but also for helping others you may be traveling with. A great way to prepare for your trip is to take a first-aid or basic life support course before you go; if you're traveling with a group, you should know where the first-aid kit is and what's in it. According to the passage before you travel you'd better write the phone number of the following EXCEPT   _  .
your own one of your parents one of your relatives one of your friends