I would like to know the reason/science/method for "A spoon full of sugar helps the medicine go down..." While I am sure you are very hands-on and kids love you, you have never met my kid.
A spoon full of sugar does not help the medicine go down. Neither do syringes, enticing him with sugar/sweets, approaching him like its fun, shooting it in the back of his throat, letting him play "doctor" and do it himself, feeding every single stuffed animal the meds so that he sees its a-okay.... NOTHING. I thought I could rely on Google to provide solutions that work... nope.
Heck, I even took someone's advice to shoot it towards the back/side of their mouth and blow in their face... I wish I could have caught that on camera.