Are the purple spots along her mammary glands? Do they feel hard and hot?
Do her gums look pale or is there red spotting on her gums where they are usually pink?
Thanks for the extra info. You can upload pictures if they are sized small enough using the green tree icon on the tool bar.
Whle these could be from mammary gland infection due to clogging after nursing was completed my worry is the spots you are seeing may be due to a bleeding disorder and the purple color is due to bleeding under the skin.
This sort of problem can be an inherited issue or might be due to a tick carried disease or another health issue. This site has 6 pages of info on the problem linked together
scroll down past ads on each page to see all the info.
Bleeding can also be due to ingestion of rodent bait.
While red spots on gums and abdoment are one sign another is bruise spots along the abdomen.
This may also be due to infection under the skin leading to abscess formation that may open and drain.
You can read about more causes of lumps and bumps here
I'd plan a vet visit for her.
If your dog might have gotten into anything toxic, appears dehydrated (see if a pinch of skin over the shoulder blade stays stuck in a tent form or flows back down normally when released), has a rectal temp over 103.5F (normal is 100.5-102.5 Fahrenheit or 38 - 39.2 Celsius ), has gums or tongue that look white, blue, gray or yellow tinted where they are normally pink, has a slow color refill if you press on a pink area of gum or tongue, is not breathing well, or is becoming lethargic and non responsive to you then you may want to get the dog in to see an emergency vet if one is available in your area.
This site may help you locate an emergency vet if you need one
Hope this helps you!
You should see a tool bar or the words Show Toolbar in the reply box frame.
If you are having trouble with that you can email email@example.com for help as I don't see the customer side of the site just the question/answer area.
If you know she may have gotten into rodent bait she will need vet care as soon as you can get it. You can read about that here
Email the customer service folks and you can ask them to add the pictures to your question here for you or how to do the upload etc. I'd help with it if I could!
You can upload the pictures to a free picture hosting site such as http://www.mediafire.com/ and paste a link to them here.
Hmm that purple lump area does look like it could be an infection.
Do you live in the southwest by any chance? has she had a flea issue? do you have mice or other rodents around the area?
Thanks I was thinking of a particular infection but its not as likely based on your location
This could be a hemangioma which is a blood vessel filled tumor. You can see a picture of one here
It may be an infection/abcess.
And it could still be bleeding under the skin due to rodent bait.
It really is going to need in person vet care.
The rash didn't show as clearly but it might be due to skin infection or flea allergy or perhaps a dermatitis if she has worms from having had pups and cleaning them etc.
If she seems OK you may be able to wait to see your own vet when they open. But if she goes pale or seems weak etc. you might consider off hours vet care.