Many individuals in Vietnam traditionally consume rice porridge with scallions, perilla leaves, and ginger when suffering from a common cold. However, a doctor of traditional medicine cautions that this remedy isn't universally beneficial for all cold cases. The effectiveness depends on the specific symptoms and the individual’s condition. While these ingredients possess warming properties potentially helpful for certain types of colds, they may not be appropriate for all. The text implies a nuanced approach to traditional remedies is necessary. Determining the right treatment requires consideration beyond simply applying a common practice. Consulting a medical professional for personalized advice is recommended.