Drop in supply

Please help! I came down with the flu 36hrs ago and prior to that I was producing 5oz of milk from each side. It's suddenly dropped to 1.5oz each side and I'm stressing. I assume it's due to my high fevers/dehydration so I've upped my fluids intake but it still hasn't helped. I also skipped one feed in this time as I was too unwell, would that have affected it? What else can I do to get my supply back? (baby is 5weeks old)