Thanks, I am going to ask my brother too, he is a vet and I am sure he has been asked this before.
You should be aware that the fumes from the skunk spray can make you vomit. The odor is is unbelievably strong. So, to dilute the stench and retain your lunch, it is best to keep the dogs outside to clean them.
Another reason to keep the dogs outside: If a sprayed dog cleans himself by rubbing on your rugs or carpets, the smell inside your house can last for days.