Headaches in dogs

I was curious to know if dogs got headaches so off I went to do an internet search. Headaches are a type of  pain that a dog would have a hard time letting their owner know that they had one. There is a large consensus that dogs do indeed get headaches just like humans do. Their headaches can be caused by allergies, sinus problems and head injuries. I don't know if they suffer from migraines since human symptoms would include nausea and other more severe signs. Even if dogs did suffer from them, what would a migraine treatment for a dog? I could not find the answer to that question.