Certain dog breeds are more prone to drooling because of their floppy lips and jowls, an expert has said.
However, pet meds may be required as there are some medical conditions that can cause excessive salivation.
Pete Wedderburn, writing for the Daily Telegraph, explained that dogs salivate because they lose heat through panting.
Most dogs will swallow excess saliva, but certain breeds such as the St Bernard have the tendency to slobber, he said.
However, he wrote: "There are some rare medical conditions that can cause excessive saliva production (ptyalism), so if your dog seems abnormally wet around his mouth, it'd be safest to have him checked by your vet."
According to petmd.com, deseases affecting the pharynx, oesophagus and stomach can result in excessive saliva production. Ingestion of a toxin or foreign body can also cause ptyalism.