I noticed my moggie (sorry for keep refering back to her all the time but we had her over 16 yrs) used to suffer from black flaking in the crevises of her nasal passage, i used to put it down to dried food, if she had had her face to far into her whiska's and food got caught i figured it just dried out. it was said it could just be bogies, it may well be.

I know the posts were back in may and i hope you got it sorted whatever the reasons behind it was.

michelle