@Duck_life How long has the leg and foot been like that? You'll need to soak in warm Epsom salt water or betadine and warm water or just plain warm water if your going to do the tub instead of a bucket. After soaking apply clear iodine you may have to soak many times over a period of day maybe a week and apply the iodine until the scab is loose enough you can peel it off. You can try with your nail or with a pair of tweezers. It's very inflamed though for him to not be using his leg. You need to start asap because you don't want staff to move to other areas. Actually a vet would be a good idea if you can.
How's your Guinea?
How's your Guinea?