@Yvonne G would you please help here? Thank you very much.
You are most welcome and apologies: I've no idea what it could be.Thanks
Usually when no one comments it's because they don't know the answer.
Take a look at the end of this thread. Looks like it's the same problem and has been seen by a vet:
https://tortoiseforum.org/threads/otitis.169573/
I’m sorry that no one has commented. @Yvonne G could probably help you with this question.
Hope all goes well for this little guy!