Cara used to have problems with hot spots, but she passed away almost 6 yrs ago, so it's been a while since I've seen one now.
Those spots are still pretty small (thank goodness) so it's hard to say, but they do look like hot spots to me. I'm not sure that I'd shave them though since they're still so little. Cara's vet prescribed a powder that dried hot spots and prevented infection at the same time and it worked great. I'm sorry, it's been so long that I don't recall the name, but if you can pick up something from your vet and treat them quickly, they may heal up easily. BTW, for Cara, the cream or ointment based meds were awful, they just made them worse, the sprays were very painful for her, but the powder based meds were great.