HAZLETON, Pa. — Troy Healthcare in January acquired the distribution of its Stopain brand, an external analgesic Troy has been manufacturing since 2002 that is already an up-and-coming pain-relief spray. The brand cracked the top 10 list of external analgesic rubs for the 12 weeks ended Dec. 26, 2010, moving into the No. 10 spot with $1.3 million in sales across food, drug and mass (excluding Walmart), according to SymphonyIRI Group data. SKU growth of 16.1% in that period also is outpacing category growth of 11.3%.