I just treated one, and I'm too lazy to apply cream, so I filled the bath/shower stal with 3" warm and let her sit for 30 minutes. Then I cleaned all the nasty, crusty stuff off, dipped the legs in Novalsan, and gave oral ivermectin. Couple spots were pretty raw, so kept her in a clean crate until they had a nice, healthy scab. Quite unorthodox according to what I have read, but didn't want to deal with repeat treatments.
And yes, I know ivermectin is not approved for laying hens, but this is an old hen that probably hasn't laid in years.
And yes, I know ivermectin is not approved for laying hens, but this is an old hen that probably hasn't laid in years.