Mistake? Maybe?

I’m a full time float nurse for my school district, 22 schools total. I do a lot of long term sub positions for nurses on maternity leave, sick leave or for schools whose nurses have quit and waiting to hire a new one. I’ve been at this current elementary school for 2 weeks now. Today I saw a little kindergarten girl for a headache and sore throat/cough. No fever, throat had some post nasal drip and was a little red. Suspect it was all allergy related as we live in the allergy capital of the country I feel like. I have her some cough drops and a small dose of Tylenol and sent her back to class. Later on in the day I was checking my charting and noticed a little note in her caredox chart saying something along the lines of “Must call mom for permission for any OTC med including cough drops every time. Mom does not want student having meds.” Mind you this was not a flag or alert on her profile. Just a little extras note. He’s drop down OTC permitted tab had permitted Tylenol, Cough Drops, Tums and Bacitracin Ointment. All of this was permitted back in October of 2021. The note entry I mentioned earlier was from February of this year. I obviously did not notice the note earlier as it was not flagged so I just looked at her permitted meds and gave it. The nurse that wrote this note should have removed all the meds off permitted list so this would not occur. We are all trained that if it’s not selected on the permitted list, call, if it is selected, you can go ahead a give it as it has been okayed in the past. Hopefully I don’t get a call getting cussed out tomorrow for this. I was not relayed much information at all on the kids at this school with how the prior nurse left unfortunately. I feel like this is a med error but at the same time her permitted list was still active so I’m not sure what to do. My boss did not seem to be concerned about it.