Antihistamines work for me. Any over the counter medication which is aimed at drying up the sinuses. During busy seasons, I use them even when I don't have a cold. Coated medications should last you for four hours and kick in fairly quickly so if you take two before you start, you should be good for the night.
Nasal sprays, disgusting as they are, work well in tandem. Other than that, you probably sound much better than you think, when you have a cold.
Interesting advice, Hamish. I've often thought about getting a headset but that's the one thing that stopped me. So I'm not completely nuts!
Good Morning All, from the cool grey Highlands of Victoria, BC on this the first full day of Spring, 2007.
Jim