What are the problems in the preparation process of traditional black ointment?

Oil refining is the key to the production of ointment matrix, the degree of oil refining must be mastered appropriately, which directly affects the ointment of "old", "tender".

Quality requirements

1, the selection of herbs must comply with the provisions of the Pharmacopoeia and design requirements.

2, the herbs should be processed by law, crushed, according to the design requirements for the preparation of drugs, spread paste before blending into the drug, the temperature can not exceed 70 degrees.

3, to remove the fire poison should be thorough.

4, the paste should be black and shiny, oily and delicate, no spots, old and young moderately, spread coated uniformly, no flying edge gap, warmed up to stick to the skin, and does not move.