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l To dull the pain of needles, Ferndale Labs offers L.M.X.4 topical anesthetic cream. The Ferndale, MI-based company said the cream uses a patented accusomes delivery system containing phospholipid spheres that deliver numbing lidocaine through the epidermis into the dermis within 30 minutes. L.M.X.4 is sold on www.dermadoctor.com.