According to this passage from a website, it's stated that the Irish war-god and Tuatha Dé Danann's first ruler Nuada Airgetlám was sometimes accompanied by a pack of dogs whose licks are said to have healing powers:
"In ancient Irish mythology, there are numerous references to dogs suggesting that dogs held a special place in the early Celtic culture there. The god Nuada, known for his healing powers, had a pack of dogs to help him. The dogs were also magical and could heal people by licking their wounds."
Nothing I've found so far suggests that Nuada was accompanied by these dogs, expect for repeated mentions of his British counterpart Nodens, who was a hunting god that was symbolised by dogs and a throwaway line from this translation of the Dindshenchas' third volume that makes mention of a Cú Núadat (Gaeilge for "Nuada's Hound"), suggesting that Nuada had something of a dog motiff attached to him.
Dénum aile, is mebair lemm,
rochúala cách co coitchenn;
Cú Núadat, ba mór maise,
robáite ‘sin chrúad-glaise.
Is this an singular objective answer to this question?