Hello again Wiebke! Just got back from the vets with Wallace. She thinks it will heal nicely on it's own and at the moment he doesn't require antibiotics as she thinks he is fighting off any infection by himself as it hasn't been oozing or pussy. As you said, I am to keep it clean and keep an eye on it to ensure an abscess doesn't develop.
I am still undecided whether or not this warrants separating them. They have been together since January. Wallace has just turned one and Clegg is nearly five. Like I say, the majority of the time they are fine but every so often a scuffle breaks out. They have plenty of room and lots of different houses so there is no need for them to squabble over one particular hide - I think they just startle one another if one walks in on the other and that's when it happens. I've posted a picture for you to see a typical layout of their run but any suggestions would be more than welcome. If I can do anything to help them stay together I will but understand that if separating them is for their best interests then although it would make me sad, I'll do whatever is best for my boys.
By the way, thank you for your help and for putting a smile on my face - I haven't heard the word "crud" for donkeys years! My brother used to say it loads when we were kids so it was great to hear it again out of the blue!
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