Yes-
 
1- Get some extra doses of vitamin D either by the sun (but don't get  
sunburned) or cod liver oil or vitamin D3 supplements.
 
_Life  Extension Daily News_ 
(http://www.lef.org/news/LefDailyNews.htm?NewsID=4335&Section=VITAMINS&source=DHB_060916&key=Body+ContinueReading)  
 
2- Red raspberries (high in infection fighting ellagic acid). The seeds  
contain the largest amount, but I imagine most pass through without being  
digested, or get caught in your teeth! I whiz frozen berries in the blender,  strain 
out the seeds, dry them in a slow oven (@250) for about 30 minutes,  then 
pulverize in my coffee mill/spice grinder, put in an empty spice bottle,  and 
sprinkle back on my food or into my raspberry/coconut smoothies.
 
_http://health.centreforce.com/health/strawberry.html_ 
(http://health.centreforce.com/health/strawberry.html) 
 
3- Good ole' Echinacea
 
BTW, I have read (though don't have references handy) that sugars (read  
carbs) compete with vitamin C for the same receptor sights on the cells, and the  
sugars will usually win, which might be why you have found that ketosis helps  
you fight off infections- makes more vitamin C available.
 
OK, so the freezer, the oven, the blender, the coffee mill, and even the  
fine strainer aren't Paleo- depends on how strict you want to be!
 
HTH,
Maddy
 
In a message dated 9/21/2006 4:04:35 P.M. Eastern Standard Time, Tom Bri  
<[log in to unmask] writes:

Hi. Got  a cold coming on. Time to go into deep ketosis. That seems to really
help  with the symptoms, high fat low carb works better than just about
anything  I have tried. Sigh. I love the autumn fruit...

Anyone have any other  paleo-type remedies? Thanks.