Vacation is a time to relax and unwind. When traveling far from home, it’s a good idea to make a few extra preparations to ensure a healthy trip. Here, infectious diseases expert Robin McKenzie, M.D., offers a few tips to keep in mind before your vacation.

Don’t Wait to Vaccinate

Depending on where you are going, the Centers for Disease Control and Prevention (CDC) offers a list of routine, required and recommended vaccinations. Schedule an appointment with your doctor at least four to six weeks before your trip to discuss what vaccinations you need. You also may consider going to a travel clinic, such as the Johns Hopkins Travel and Tropical Medicine Clinic.

For an appointment at the Johns Hopkins Travel and Tropical Medicine Clinic, call 410-955-8931.

Hydrate, But Don’t Drink Tap Water

Nonalcoholic, decaffeinated beverages, including water, may help ease jet lag.

In many countries, you should drink bottled water instead of tap, even if you are staying at a five-star resort. Tap water may contain infectious organisms that can make you sick. Your doctor may prescribe an antibiotic before you travel in case you get traveler’s diarrhea.

Avoid Getting Bugged

Concerns surrounding the Zika virus have increased the media attention on mosquitoes, but insect-transmitted illness is always a concern when traveling to tropical areas. Follow the CDC’s guidelines for insect precautions, which include using an Environmental Protection Agency (EPA)-registered insect repellent, such as DEET, and using permethrin-treated clothing and bed nets.

“We stress the importance of insect precautions around the clock,” says Dr. McKenzie.

Keep Moving

Sitting in a car or airplane for a long period of time increases your risk of blood clots. Exercise your legs regularly and stay hydrated. If you can’t get up and walk around, try extending your legs and rotating your ankles while seated.

With a little planning, you can help everyone have a fun, safe vacation. Bon voyage!