Because the air becomes so thin and dry at such a high altitude, it is a good idea to pack vaseline when climbing Kilimanjaro. Furthermore, it has the potential to turn quite chilly. As a result, your skin will get very dry very fast. Vaseline, a thick nourishing lotion, will keep your skin and lips moisturized. When your skin hurts from cleaning your running nose, you may use it to soothe it in and around your nasal area.