grooming irritation?

hi,
i got my cavalier groomed (bathed and shaved down for the summer) on Thursday. After that, I noticed that he had a couple of pinkish spots that kind of look like bug bites and also he had a little scabby bump. the scabby spot i picked a little bit so it started falling off but now it's just kind of hanging there.

i was just wondering if this is something that could result from the clippers - like an irritation orsomething ofthat sort...he's not bothered by the spots at all except when i try to like pick at his scabby spot, which i've stopped doing. he's not itchy or anything, and they don't look infected.

i can take pictures too, but i'm not like super worried - just concerned a little bit.

Just a sort of an inquiry

How many times in a weeks should the dog get a shower>?

Where I learned to groom dogs, they say if you use an all natural high quality dog shampoo you can do it a few times a week. however I recommend 1 or 2 times a month depending on breed and lifestyle.