Might be a bit late jonny but if you can get some elderberries add a couple of handfuls to water, add 250g of sugar and the juice of one whole lemon, bring it to the boil then let it simmer for about an hour until reduced. Allow to cool to the consistency of a light jam. Add a couple of teaspoonfuls to hot water and drink, one in the morning and one before you go to bed. Should have you right as rain within a couple of days.
Rip out your respiratory tract (from your nose to your lungs) and set them on fire. You will find you won't need to cough anymore without those parts.
For the cold I'd suggest boiling some water, putting it in a bowl and leaning over the bowl with a towel over your head. The steam should clear your sinuses and allow you to get all the mucus out. It's important you use the towel to cover the entire bowl to prevent the steam getting out. For the cough/sore throat I'd use this: http://www.pharmacyfix.co.uk/product/ultra-chloraseptic-anaesthetic-throat-spray-original-flavour?gclid=CP3v4fvs9cECFY_MtAodVQ4AKA You'll be able to find it in a chemist.
Thanks i got vodka last night tried s and going boil that up tonighterryit sort of worked got cough syrup and lemons blackb