CINCINNATI — This cough-cold season, Procter & Gamble showcased four new Vicks Nature Fusion products — traditional cough-cold-relieving medicines infused with honey. And while none of the Vicks formulations are for kids, the move toward a more natural remedy could be reflective of what’s happening over in the kids’ cough-cold space. With the safety and efficacy of cough-cold medicines called into question several years ago, that category is now stocked with homeopathic remedies and natural buckwheat honeys. So what might be good for the kids could be good for adult cold and cough relief, too.