CHELSEA turned on the style in the second half to ease past Bolton and end a winless run of five games.Bolton frustrated the Blues before the break but David Luiz’s fine curled shot put the hosts ahead in the second half.Didier Drogba’s close-range header made it 2-0 and Frank Lampard volleyed a third from Juan Mata’s cross.The visitors, whose best chance saw Nigel Roe-Coker fire wide after the break, remain 19th in the table but are only above Wigan on goal difference.