Given the extent you don't really need to do more, you just need to make sure to keep the substrate dry and clean (preferably changing the substrate to paper towel), and wait until the next shed.
Remember that scale rot is in most cases caused my damp substrate so this is something you will need to be careful with in the future.
Also keep in mind that cream such as polysporin and other antibiotic ointment can lead to loss of scale if used to often.