Last time my daughter had a bad cold, I went to the store to grab some vapor rub. She hates having it on her, but I knew it would help with her congestion. As I was browsing, I noticed the PediaCare Gentle Vapors Mini Waterless Vaporizer Vapor-Plug and Nightlight. I was pretty intrigued. I went ahead and grabbed one, and bought a generic bottle of vapor rub as a back up. I got home, opened it up, read the instructions, and plugged it in my daughters room. I went back in to her room about an hour later and the room was filled with the vapor (rub) smell. Perfect! That night when she was ready for bed, I tucked her in and told her she was in luck, no vapor rub tonight, we were going to try the plug in with nightlight instead. She smelled and said ok. When I checked on her a few hours later she seemed to be doing pretty well. Her congestion didn't sound nearly as bad, and I wasn't hearing a whole lot of coughing coming from her room. This is now our go to for colds. So much easier and less messy than the rub. The price is decent, and so are the little refills. It is easy to use, and lasts the whole night. And the little blue nightlight is an added bonus.