How do I get a 3yr old to take penicillin?

[Jen44]

DS - nearly 4 - has always been difficult taking nasty tasting medicine. Just had to pin him down and it still went everywhere. First we tried a bribe of chocolate, then tried holding his nose, neither worked. Traumatic for all - any ideas gratefully received.
Thank you :)

Use a syringe and squirt it down the back of his throat so it doesn't touch his tongue, then a reward chocolate to prevent any risk of the tongue being contaminated with the taste? (tends to work in this household!)