Ive got a bad cough pleeeese help?

ive had a cough for the past six days now n its really annoying. i dont have any phlegm or anything n ive been chuggin dayquil and poppin halls like crazy but im still coughing. is there any way to get rid of it, i went to the doctor n he said theres nothin wrong with me. my throat dosent even hurt that much its just a little scratchy from coughing so much