Hi all well the pups are now 3 weeks old and i have just found a flea crawling on one of them i caught it and disposed of it checked them over i cant see anymore obviously from mum what can i use on her .

I'd just use a flea comb and go over her thoroughly and keep checking the pups...

Frontline spray is safe for very young puppies and on mum too. It no longer seems to have its lasting effect as in the past but it will treat your immediate problem.