What to do if one is travelling in humid areas? I have a lens I picked up on the road that I'm carrying around for a few weeks in SE Asia. It's humid to say the least. No where to buy a silica gel pack. I can get rice though. Rice as a desicant is marginal at best. Is there anything to be done or should I just tough it out and hope for the best. The lens is wrapped in a sock right now.