Generally speaking, erythromycin ointment needs to be applied the day after an abrasion. Erythromycin is an antibiotic with anti-inflammatory and antiseptic properties. Erythromycin ointment is suitable for purulent skin diseases, small burns, infections on ulcerated surfaces and acne, etc. The duration of its use depends on the patient’s specific situation. It is usually used for about a week for minor abrasions, and longer if it is severe. However, long-term use is not recommended. People with abrasions should also eat a light diet, do not spicy diet, do not stay up all night, excessive fatigue, but also in the regular doctor’s guidance to use erythromycin, follow the doctor’s instructions to use the drug, do not stop or increase the amount of drugs, which is not conducive to the healing of wounds and the recovery of the condition.