When you buy through links on this page, HuffPost may earn a commission that helps support our journalism. Every product is handpicked by the HuffPost Shopping team, and prices and availability are subject to change. As a mom to a toddler in daycare, I have a front row seat to how sick everyone can get. Because the show must go on, I’ve learned to arm myself with cold and flu essentials that help keep the sniffles — and worse — at bay. From trendy hand sanitizers to app-enabled humidifiers to