My 5 year old brittany has burn like marks

I was playing with my Brittany Jazmine on day (July 1st) when I rolled her onto her back and on the inside of her leg she had a mark than looked like she was burned with a cigarette. I came back from a weekend in Tahoe and looked at it again and it looked like it was drying out. I didnt think too much of it because it didnt seem to bother her and she didnt mind me poking and prodding her, plus that was the only one. I kept an eye on it and it seemed to heal just fine. However I looked at her legs again last friday (July 8th) and she had two more but they were smaller and one had already dried up and was healing. I looked again today to find that she has another one. Still they dont seem to bother her, she doesnt whimper, move or flinch when I touch them. Jazmine has been healthy all her life until a couple months ago when she got an infection in her spine and was put on antibiotics and steriods. She ended the antibiotics about the end of April, and ended her steriod treatments on June 28th. I'm just wondering if anyone else has seen this before. These marks are also far up the leg, they are very close the belly and she has the one I found today is right on the back of her left leg about a half inch from her privates (which seem unusual also, but again she appears to be fine and she has no problems urinating, except she has some leakage, which has slowed down since she ame off the steriods.)

[ginger899]

It makes me wonder if these marks could be ringworm....just a thought (which as you may already know, isn't a worm at all, but a fungal infection) You could take her in to get them looked at?
The dog I had some years ago got this. I seem to recall he got round-ish red scaly patches and it was ringworm, and I recall it wasn't too difficult to treat, but I have forgotten the details. I also remember they didn't really seem to get him down at all. He was his normal self.

Get this checked out. But do be aware that Ringworm can also infect humans, and will present as "Scabies". So you need to be sure.

[Caryopteris]

I do not think this is ringworm or scabies.  I think you need to call the doctor and have her seen tomorrow.  

[jazmine8130]

Im sorry but I failed to mention this and I do sincerly apologize but the marks arent red, theyre actually black in color, I have looked at scabies are they look nothing like that, so Im pretty sure that is not it... But I do appreciate the answer because I thought so too... also when i look on the skin underneath and once it peels and there wasnt a mark on her skin, when I looked at another there was like a tiny scab underneath and everyone in my house is fine, especially me since Im the one thats been touching her and the other dogs dont seem affected...

[ginger899]

OK if the marks are black they don't sound like ringworm. I would get these marks checked out with the vet, anyway.