No, I don't think so. I tried one time to let Paris' hair grow out to the "show" dog Yorkie look, with long flowing locks of hair. They quickly turned into a solid mass of tangles. Here's the result of that experiment...
He's been a short hair Yorkie ever since. LOL Pretty cute!
Today was a good day. Last Tuesday was not a good day. Paris was up at 4:30 coughing. I couldn't get him to stop. I tried honey, I tried rubbing his throat, I got him a drink of water...nothing. He coughed for 30 minutes. Terrible hacking coughs. It sounded like his lungs were being expelled. Sorry I finally gave up and gave him a dose of his cough medicine even though it wasn't time for it.
It finally settled him down and he went back to sleep. The narcotic in it puts him out. Maybe I should ask for a night time sleeping pill (for him). I am giving the medicine regularly twice a day now. So I know he must be getting worse with the collapsing trachea. Poor baby!