11 month old cough and wheezes when breathing

Lily
I asked the doctor and they gave her Benadryl. It's been going on for a week now. Any advise on what I do. She is very active and no fever thank god. I am also giving her zarbees baby syrup and Vicks rub and vaporizer. First time she got a cold and her birthday is 10 days away :( hope she is better for her party