[Jiggly]

So I have a nasty cold. I'm hoping it isn't developing into something worse but I feel seriously rough.
I wondered if any one knew any home remedies to relieve symptoms?
I find painkillers reduce pain but don't completely numb it. Lemsip *cough* should be banned, it's vile *cough* and other over the counter cold medicines have zero effects.

I have heard rumours that peeling an onion and placing it by your bedside table is supposed to relieve symptoms and clear up breathing (although the rumours also say the onion goes black by morning)... Has anyone ever tried this or other secret remedies?