The winds in California have caused many of my clients to call and complain that they feel as though they have a cold.  It might actually be allergies, but, just to be safe, I would suggest taking Vitamin C; CO Q10 along with some fresh lime or fresh lemon in water a few times a day.  Hot or Cold water with the lemon and/or lime is just fine.  How much Vitamin C, most likely 3000-5000 for 4-5 days then just 2000 a day.