Question 1. Can I dive with flu?

Diving with flu or sinus problems is never advised, it significantly effects your ability to equalize your ears.  Equalization problems on the descent are less of an issue, as your likely to abort the dive; whats more of an issue is if you have a reverse block during ascent.  Having to ascend with a reverse block can result in bursting your ear drum!

The use of flu medicine to control the symptoms during diving is also not recommended, as these can often have side effects of drowsiness or can wear off during a dive causing problems. 

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