Hi going to France, Spain & Portugal in Sept . for the first time. Can anyone tell me what is the right wormer to use, I use Drontal at home but don't know if this will be ok abroad. I know you have to go to the vets for a wormer before coming back into the UK. any help would be appreciated from all you know it all Funsters , that are always back and forth across the channel . Mew & Mick