Elspeth no you didn't tell me about Ceilidh's visitors!!! but at the end of the day dogs pick up fleas, and puppies get treated with frontline but it's done on weight so as they grow which lets face it is daily the frontline is less effective. Fleas are so easy to pick up as well, Hedgehogs are a real pain if they are in your garden the dogs will pick up a flea, or cats will off wild rabbits and brings fleas into your garden. the wet warm weather doesn't help either.
Anyway there are other things that can get puppies tummy's sore,contact allergies, don't use shake and Vac (don't know if it's still around ) but it sets dogs tummy's off. Oil seed rape, Logi is very allergic and has has a runny nose for weeks due to the rape around, pollen and so on. With girlies they get sore twinkles!!!! where they squat for a wee and then sit in it, cystitis is common in girl's that do this. Would love to see a pic of his tummy if you would e mial it to me and yes what does the vet say? Sudocream is useful but it does depend what it is like before you use it.
Elpeth are you trying to say my dogs should be in a borstal!!!!!!!!!!!!!!!!!!