I am to start using the Zyclara on my chest, and I am really nervous about the side effects?I was informed about the redness/scabs/rash, but now I have read that there are other physical effects of a more internal nature. For those that have had side effects, do they start right away and if so do they stay for the whole 2 weeks? Can the topical effects be covered with gauze/bandaids or must they be left open and uncovered? Thanks.