So my LO is 12 weeks old and was diagnosed with URI(upper respiratory infection) i know they have to catch it from someone. But my mom who our ONLY baby sitter 2 days of the week watches her. My mom swears UP AND DOWN she goes outside to smoke. But her house just smells like smoke regardless. Cause she snokes in there when my baby is there. My hubby and I are not smokers. I cant stsnd the thought her being around it. How can i know forsure my mom is not smoking around her besides word of mouth. This is soo serious. :,(((