I drank four liters of tonic water in two days and had quick relief, so much so I felt I was almost completely recovered. The this week the coughing and short breath started up again. I'm back on tonic water since yesterday, already feeling better again and plan on keeping up the quinine treatment until I am absolutely sure. Whatever I picked up st the hospital is pure hell and scary. I've never had something like it in my life. No fever, phlegm is whitish to pale yellow, with no other symptoms than being short of breath during exertions like any construction work.