There are two basic types or stages of colds. In Chinese terminology they are the wind cold type and the wind heat type. They have different symptoms and different treatments.
This type often occurs during a change in the weather or when one is exposed to wind and cold. With a weak immune function, these pathogens enter the skin. The symptoms could include chills, fever, no sweating, headache, body ache, stiff neck, and clear copious nasal discharge. This is often the first stage of a cold. When the pathogens are at this initial, superficial stage, we seek to sweat them out. A hot bath or dry sauna could be beneficial to begin the sweating process. Eat soupy rice porridge, and eat as little as possible so as not to burden the body with a lot of digestion, so energy may go to fighting off the nvasion.
Avoid: shellfish, heavy proteins and fats, meats and all vinegars. Vinegar closes the pores and "traps the thief in the house”.