The addition of petroleum jelly to externally applied Chinese medicines serves to blend the powders and moisturize the skin.
1. Blending of powders: Most of the Chinese medicines used in external application are made into powder, and then petroleum jelly is mixed with the powder, which can blend the powders together, and can also be fitted to a certain position on the skin.
2. Moisturize the skin: most Chinese medicines are very dry and do not contain water and oil after they are powdered, but when mixed with petroleum jelly, they can be blended into the oil and water, moisturize the skin and play a role in the medicinal effect.
When mixing topical Chinese medicine and petroleum jelly, it is necessary to mix them according to a certain ratio. If the patient is mixing it by himself, it is recommended to consult a medical professional. All medications should be used under medical supervision.