Ichthyolipid ointment itself has anti-inflammatory, antiseptic and anti-swelling effects, and its pus extraction usually takes 3-4 days. When applied to the surface of purulent skin diseases (such as boils, carbuncles, folliculitis, cellulitis, etc.), ichthyolipid ointment can effectively inhibit the proliferation of bacteria in the purulent area, and it can make the internal pus break through its own epidermis within 3-4 days, so that it can be discharged from the body. However, it should be noted that fish oil is irritating and may cause some burning and irritation when applied to the skin surface. If the symptoms are not obvious, it can continue to be used, but if there is obvious local tingling, it is recommended to stop using the drug to prevent fish oil from forming adverse effects on the skin and endangering health. While choosing to use ichthyolipid to extract pus, you can combine it with sensitive antibiotic treatment under the guidance of a doctor if necessary, which can speed up the recovery to a certain extent.