@trinsec i swear on onion with sugar: dice an onion, place it into an airtight container and put 1-2 spoons sugar on it. close and let rest for the night. next day you take the onion-extract sirup which formed. sounds unpleasant but is tastes not bad if you like onions :)
@bonifartius And even if it doesn't help, at least they make me think it helps. Placebo effects can be strong! ;)