One of my hens "Jody Jane" has some vent issues. She had poop stuck in her feather and her vent was very irritated, Pink and had white secretion coming out.
Hi
@Kaleen Morris 
Welcome To BYC Looks like you have a few things going on, I'll try to address the ones that stand out to me.
If you have photos of the vent that would be great. From your description of a white secretion coming out - it sounds like your girl has Vent Gleet.
Here's some reading for you on that:
https://www.tillysnest.com/2012/12/vent-gleet-prevention-and-treatment-html/
https://www.mypetchicken.com/backya...s-vent-gleet-and-how-can-I-treat-my-H491.aspx
Already she is looking better and she's eating and drinking like she's never had food or water before. She is missing alot of back feathers and has always looked ugly and had a lack of feather or had broken feathers in her back and head area. I assumed was being pecked on
See your photo? Those missing feathers on the head look like loss from mating. You have a rooster? That's where probably most of her feather loss on the body is coming from too. She does have quite a few loose feathers on her breast, she might be molting, but in your photos they look broken/damaged. The bald head says mating - is she your rooster's favorite or is she low in pecking order?
How many feed stations do you have for your flock and what do you feed? You mention that she's eating/drinking like she has never had food - have you observed whether or not she was being kept from food or that the rooster was bothering her so much she couldn't eat or she was isolating herself?
Also is there anything else to use for her vent? I don't understand why I got 2 hens with vent issues.
You had 2 hens with what I suspect is Vent Gleet. Are both these hens lowest in pecking order and the rooster's favorites?
It would be a good idea to take a look at the rooster's vent as well.
Good ideas from everyone. I agree treating for external parasites, the SLM and worms.
Ivermectin will take care of body lice/mites and SLM and maybe roundworms. It has lost a lot of it's effectiveness over the years in control of internal parasites. General consensus for Ivermectin is to treat, then repeat in 10 days. Some mention repeat 2X.
Timeline on withdrawal is 28 days after last treatment. Be sure to weigh your chickens to give the correct dosage. Dosage for Ivermectin Pour On is 0
.09ml per pound of weight, administer along the base of the neck along the spine, it does need to make contact with the skin.
Wazine (Piperazine) will treat roundworms
only. Read the label about how to administer that.
If you want to treat most worms that chickens have, use either Safeguard (Fenbendazole) or Valbazen. Again, you need to weigh your chickens to give the correct dosage.
Valbazen dose is 0.08ml per pound of weight given orally, repeat in 10days.
Safeguard dose is .23ml per pound of weight given orally for 5 days in a row.
Of course, getting a fecal float through your vet is always a good idea to get confirmation on worm load and type.
As for your coop problem - with cold weather coming on - that's stressful. You may want to wait until it warms as bit before you make any major changes/upset in housing. Chickens do not like change.
Just my 2¢