Should i take her to see her doctor?

My baby who is around 6 MO had gotten the flu and cough she also got an ear infection i took her they gave her medicine gave to her as is. About 2 weeks have passed. She started again with a stuffy nose and cough. (maybe change of weather and possibility i got her sick since i also got sick) But i have notice again that she is constantly scratching her ear. The medicine they gave her shouldn't that have helped it go away? Should I take her again?