It occoured to me today that I haven't wormed Giz for some time
![Hiding ph34r](http://cockersonline.co.uk/discuss/Smileys/classic/ph34r.gif)
However, last time she was sick from it and I can't now remember which one it was
![Roll Eyes ::)](http://cockersonline.co.uk/discuss/Smileys/classic/rolleyes.gif)
Is worming a must? And can anyone recommend a good one. Or, if I switch to stronghold from frontline, do I still need an additional wormer.
doG I feel a bit stupid, it's usually taken care of at the vets but we haven't had to go for a long time.