There is a fundamental difference between Erythromycin Ointment and Ma Ying Long Hemorrhoid Cream. Erythromycin ointment is a topical antibiotic, belonging to the macrolide class of antibiotics, with a relatively broad antibacterial spectrum and antibacterial effect on Gram(+) bacteria and Chlamydia trachomatis. It can be used for boils on the skin, folliculitis, minor wounds, and minor burns. Ma Ying Long Hemorrhoid Ointment, also known as Ma Ying Long Musk Hemorrhoid Ointment. It has the efficacy of removing decay and muscle, invigorating blood and subduing swelling, clearing heat and drying dampness, and is made of a mixture of musk, nux vomica, furnace glycine, borax and ice chips. It is used for bleeding stool, pain after stool, perianal eczema, hemorrhoids, anal fissure and other diseases.