Do you have a photo you can share with us of the spots? I have the most amazing treatment for Hot Spots...You might be able to get the stuff at your vet. My own vet gave me some. But if your vet doesn't carry it...you can buy it online...
Vet Solutions Surgical Scrub & Handwash, 16 oz. at PetsTruly.com
This stuff is amazing! You just place a dab of the solution on a cotton pad or cotton ball. And rub into the area until the color of the solution isn't as noticeable. And leave it on the spot without washing off. Treat it twice a day...and it is amazing at how quickly it clears up!
Some suggest to shave the area...to clear it so you can clean it better. Are the spots seeping?