a dogs mouth is foaming because either it just ate some whipped cream -lol- or he/she has rabies... you might want to take it to a vet.
Dog has rabies/
That dog has rabies
Take him to a vet ASAP
foaming at the mouth, and crazy attacking
It could be an allergic reaction.
your other pet is jealous
Laziness, bloating, and mouth foaming
Foaming at the mouth is a classic symptom of rabies. It can be caused, however, by a dog heaving or vomiting.
He is being poisoned.
then the frog had rabies and the dog caught it take the dog to a vet rite away
Plant foaming and polymer foaming
Take him to the vet immediately as he may have injection some poison.