"Too early, I think...? I wrote down when I took the last dose..."

It's one of those medicines that they had Sally make prior to wintertime, a tincture to be taken at a tablespoon per dose. Next to the bottle is a piece of paper... because Chris knows they lose track of time when feverish. The paper has a column for 'Dose' and a column for 'Time', so First Aid can see when Chris last took their medicine.

Maybe the four hours between doses has already passed...