How can i wrap a cut on my hand to prevent getting wet?

Latex gloves: If you're not allergic to latex, a pair of latex gloves may work for your needs. Also make sure you take care of your cut by using proper wound care, such as keeping it clean and protected. I recommend that if it is superficial to use an antibiotic ointment like Bacitracin zinc. Use an adequately sized bandage and replace it a couple times per day and reapply the ointment. Seek md if not better.