Wheezing?

[stevesemerko]

My friend has a ball python that has been making a sort of wheezing sound (kind of like when your nose whistles). It doesn't do it all the time, mainly when he has her out and lets her roam a bit. Any ideas as to what this could be and how to go about fixing it. I told him to try raising the temp in her cage a bit but it hasn't done anything. I was thinking it may be a respiratory infection but if my memory serves well there is usually a mucus build up of some sort isn't there?

Steve