Medicine for external application for curing dermal viral infection and its preparation method

The present invention discloses a Chinese medicine for external application for curing dermal viral infection. Its preparation method includes the following steps: extracting kreosote from Chinese fir bark, using the above-mentioned kreosote-extracted Chinese fir bark to make active carbon, pulverizing to obtain Chinese fir bark active carbon fine powder, mixing 4 portions of said active carbon fine powder, one portion of mirabilite, one portion of sulfur, one portion of frankincense, one portion of myrrh with the above-mentioned kreosote, adding 1/4 portion of paste base so as to obtain saidinvented ointment for stand-by. When it is used, said ointment can be applied on the affected region.