Well, we are into treatment day 2. No one has responded on the other threads to my requests for information or help but I am muddling through somehow. I figured I would detail specifically how I went about treating my Perry from start to finish and that way I have a record.
Day 1: noticed the limp but let it go and vowed to keep eye on it.
Day 2: He appeared to be getting worse, he was using his wings for balance when walking but he preferred to stay in one spot, he was laying down in the yard a lot but could move when needed to.
Day 3: He refused to move when I went down to put them all up for the night. I picked him up and brought him inside. Put him in a warm water bath in my garden tub. Made it deep enough that he could swim. Afterwards, I inspected his foot the best I could by myself but couldn't see anything significant and so I took him down to the coop for the night. I slathered some triple antibiotic ointment on his foot before taking him down.
Day 4: I brought him up for another warm water bath and his foot looked worse, It was hot to the touch and his leg was swelling. We discussed antibiotics and various issues it could be, DH looked at the foot and thought he saw some cracks on the heel. Like when we get cracked heels in the winter. So I did a salt water compress (1 cup hot water and 2Tbsp table salt dissolved in it) when it cooled enough I soaked a rag in it and wrapped his foot up. He seemed to like this a lot and sat perfectly still for me. After the rag cooled, I slathered his foot with triple antibiotic cream and put him in a box in our dog's crate for the night. I put a blanket over him to reduce light and impact from the cats/dogs.
Day 5: I did a morning bath and salt compress. While applying antibiotic cream a scab seemed to come off on my hand. I palpated his heel but nothing came out. I was not brave enough to squeeze hard. I put on antibiotic cream and massaged it in. Then put him in the crate and brought him out the main room with the fam. I offered food and water throughout the day and then gave him his evening bath. He is more active now and walking better. He is not quite as compliant for the salt compress but I managed to get it on for at least 10 minutes. I slathered him with antibiotic ointment again and DH inspected his foot noting that the swelling is going down. I also noted that his heel felt less solid and more... squishy when I put cream on it tonight. All good signs!
We opted out of oral antibiotics as I wanted to use the least restrictive/invasive means possible. If the infection worsens at this point which it does not appear to be doing then I will revisit the ideal of Duramycin 10. For an 800mg dose you would use 2Tbsp powder to 1 gallon water. They recommend 400-800 for chickens and since Perry is a large duck I decided I would mix up the 800 dose and give it to him via dropper 3X a day. Thankfully we have not gotten to that point. I also would contact the vet prior to administering any medications just to be sure my math was correct!
He is doing better tonight and I am super relieved. Tomorrow I will bathe, compress, cream his foot and then leave him in the crate without the box. And I'll put down food/water. I go into work late but wont be home until after dark. Just in time to do evening chores and give him his 2nd round of bath, compress, and cream again.
Will keep updating as we go along!