PORTSMOUTH, Va. (WAVY) – Check your medicine cabinet: some Costco-brand cold and flu medicine has been recalled over a possible contamination. A recall notice on the warehouse chain explains LNK International has recalled certain Kirkland Severe Cold & Flu Plus Congestion over-the-counter caplets. The products, which contain “day” and “night” caplets, were accidentally released after initially being rejected due to a potential foreign material contamination.