Is red and hot to the touch skin after breast augmentation bad? I'm 1 week post op. (photo)

From the pictures you posted and your description, it is difficult to say whether or not the redness is normal. I believe you would benefit by an in-person evaluation by your surgeon to create certainty.For more information on this and similar topics, I recommend a plastic surgery Q&A book like "The Scoop On Breasts: A Plastic Surgeon Busts the Myths."

This is a situation you need to bring to the attention of your surgeon.  It may not be of concern, but that is for your surgeon to determine.