Costco is recalling some of its cold and flu medication. It's labeled Kirkland Signature Severe Cold & Flu Plus Congestion caplets. Costco says the recall is due to "potential foreign material contamination." The retailer didn't say what type of contamination is causing the medication to be recalled. The medicine was sold at Costco stores in Midwest and Southern states between October 30th and November 30th and has a Lot Code of P140082 on the box. The recalled medicine can be returned for a refund.