yup, you're right... verrrrry gross...
But good you asked...
Some good points here... most important is "get thine infection dealt to"
Secondary infections are no good when combined with exercise.
The general rule is if its above the neck, ride... if its below the neck - never ride til its gone.
I posted a story of a local guy from Wellington who rode when sick - took some pills to make himself able to get through the ride and he ended up in hospital.
Get well and rid of the green...