Correct slow insulin in two separate doses in the day

Hello,
I am with a strong cold with a fever and I have been shot all day.I had to correct quickly after breakfast and food.
I put the basal in the morning early and clearly, I have fallen short.I am asking myself now to put two additional slow units, tomorrow the usual, and if at night I see that I remain high reinforce again,
Has anyone done something like that?Could it work?

Yes, it could go well, according to your slow dose, although it is usually corrected quickly because it is not known when you will be fine again ..