That would completely invalidate the feat, so I'm going to have to say no to that. However, if you want to expend uses of the healers kit during a short rest and roleplay the treatment, I see no reason that those treated can add your proficiency bonus to the total hp they recover when spending hit die.<br/><br/>This can and probably will include spreading ointment on fifi's butt.<br/><br/>Also, Carly. An explanation on hit die. They are a resource to spend. They recover a bit more slowly than to, which is filled on a long rest. When you take a long rest you recover half your total hit die, so spending all of them means you need to take two long rests to recover them fully (so two days).<br/><br/>In this case you should only spend 1 hit die since you were not that badly hurt