Female Dachshund

Question
I know I did not spell the name right but she is a female weiner dog. Long haired  
I aquired her from some unsavery people who seemed to be abusing  her.  My daughter lived in this trailer park and called me one night about her.  I told her I could not help every dog in the world.  I just so happen to go pick up my daughter where the dog was and when i pulled in a girl came out with the dog and said something like. "You want her"  at first I said no but could not leave her behind.  
She must have just weined puppies, has a major ear infection. and more.   
Im giving her antibiotics for her ear infection, gave her a nice bath and flea treatment and bought some peroxide and q-tips and cleaned up her ears as much as I could for now.  
She fell asleep on my couch and I have never seen a happier dog.   As she rolled onto her back to get a good snooze on, i noticed that her last set of teats are still a little engorged, (not much but some).  I felt around and it appears to be a very large knot in one of them.  it actually moves around and is big.  very weird.  I did the ask a vet a question and she said could be mastitus.  But Ive seen mastitus in cows and this is a knot.  Do you have any ideas on what this could be.   And do you know of any remedies of getting this infection out of her ear.  
Thanks for any and all help.  
I just cant beleive how nice this little dog is.  She get along with dogs and cats, housebroken.  Sweet as can be.  

Answer
Hi Susan,

Thank you for opening your home, and your heart to this sweet little dog.

An enlarged, hard teat can indeed be mastitis. A vet would need to examine the dog to confirm this, treatment would include antibiotics for 10 to 21 days.
At home, you can apply compresses of epsom salts mixed into warm water (1/2 cup of epsom salts mixed in 3 cups of water), and if the dog allows it, try to gently empty the affected gland after soaking it with the warm compress.  Epsom salts help draw fluids out from the body. it is not an antiseptic.
After applying the compress, and trying to empty the infected teat, apply a topical antiseptic, such as Blue Lotion Topical Antiseptic Spray, Hall's Pet Antiseptic, Nolvasan Antiseptic Ointment, Iodine Gentle 1% (does not contain alcohol) or Hexadene flush.

Make sure the affected glands are decreasing in size and becoming less painful within about a 3 day period. Make sure the infection or swelling is not spreading to the other glands.  The gland may need to be surgically lanced or drained.
What you don't want to do is ignore this, as the infection can go septic, and spread to other glands in the dog's body, or develop into a bacterial blood infection. If you try to treat this on your own, but don't see it getting better, it's then time to have the dog examined by your vet.  Untreated, this can kill a dog.

Are you sure the dog has an ear infection, and not ear mites? Treatment of the ears will vary depending on what's the underlaying problem. I recommend having a vet examine the dog, so you are treating actual diagnosed problems, and not hunting and pecking for treatments.
Assuming the dog really has an ear infection, you don't know if it's a bacterial or yeast infection. A yeast infection won't respond to antibiotics. Again, the dog needs to be seen by a veterinarian.

Clean the dog's ears using a solution of 50% White Vinegar and 50% Water (warm, not hot!) and insert the solution into the ear canal. Gently massage it in and use cotton balls to clean out any debris. Oral antibiotics might be necessary, but  anti-microbial ear drops might also be needed.  Zymox Otic Ear Drops, or Ilium Ear Drops are over the counter products you can try using.

If after trying to treat the ear infection for a week, you don't see improvment, then it's time to see a vet. If finances are a problem, contact your local shelter or Humane Association to see if there are any reduced cost vet clinics in your area. You might also talk to your regular veterinarian, explain you are doing a "rescue" and if you can get a reduced fee for treating the dog.

I hope I've been a help.
Best of luck,

Patti