Try taking the stairs instead of the elevator. This is great work to prepare for any climbing you may do on your trip. Keep in mind that the better condition you are in, the better you'll feel, and therefore the more fun you'll have. Clean Water for a Healthy Body Clean water is essential for good health. But in the outdoors safe water may not be so easy to come by.
Filters are convenient and easy to use.
Tablets and drops can be added. Mild cases will have an itchy rash with blisters and sometimes get a little crusty. Keep the area clean with soap and water. You should probably also treat it with cortisone cream and Benadryl to prevent itching. If your case is more serious you should seek your physician for treatment.