A cold has a self-healing period of seven days, so it doesn't matter whether you take medicine or not. During these seven days, you can boil some ginger and brown sugar water to drink, plus soak your feet for half an hour every night (add vinegar or ginger when soaking your feet), and drink more boiled water during the day, which can fully mobilize your immune system to fight diseases and then recover faster.

Cold comes from the soles of your feet, so pay attention to keep your feet warm.

Don't try to take injections and medicine easily for minor illnesses such as colds, because the body's immune system will be numb over time. Only by constantly mobilizing our body's self-healing ability in various ways can the immune system fully play its role at critical moments.

China Baliren's book is well worth reading.