You should be able to get more than enough C from a normal diet, even a bad one – only people on a seriously restricted diet wouldnt get enough.
Common cold’d most common symptom is snuffly nose and excess phlegm (as the original poster stated they had) – so it would be needed, no? And even so, why take paracetamol and ibup when you can get sudafed (or the generic equiv) for sod all containing everything you might need for a cold. Thats like buying a car in kit form (and paying more) to build later, only lunatics would do it lol. I’m all for generics but mixing your own seems a little pointless.
The link is accessible from my site as we have institution access, sorry – didnt realise! It is the BMJs medical evidence doobry, says compared to placebo vit C shows no improvement in symptoms for common cold, test done in 2004, 3500ish test subjects. Test was based on reactive treatment once the cold started, rather than constant dosage before infection.