Just a quick question.

Please put your question in the body of the question, not in the title.

This is a dog question and should be moved to that forum.

What do you mean by grey patches and red dots? Where?

In my dog face

Do you have any photos you could post?

If not can you describe it in a little more detail?
Are the lumps raised or flat?
How old is your dog?

By grey patches do you mean the hair or the skin?