Could you describe the sore with specifics?
Is there 'movement' under her skin?
How is your cat's overall behavior?
No problem - we'll be here in the morning! Yes, you can use the ointment if there is itching, swelling, redness to help alleviate these symptoms. You should first apply only a tiny amount just to be sure the cat does not have any adverse reaction to it.
We'll wait to hear from you in the morning! Have a good night,