to his anus. When we were out for our usual walk, he had to stop and lick it to try and sooth the irritation. Is there any cream, maybe like Vaseline I can put on, to sooth it but wont harm him if he licks it?

Vaseline would work and wouldn't harm your dog.

[Groomer58]

You can put "Gold Bond Medicated" formula on it. Just try not to let him lick it when its on, perhaps apply it when he is sleeping?