Direct application of erythromycin ointment is generally not recommended for pus-filled nail infections. Although inguinitis itself belongs to a kind of infectious skin disease, erythromycin ointment can also play a role in relieving the infection, inflammation, but due to the inguinitis pus after the surface of the skin has been presented with vesicles, oozing-like changes, if the use of erythromycin ointment directly coated, generally can not be well absorbed drugs, so it is recommended to first drain the pus treatment. Erythromycin ointment is applied when the pus is not formed in the urethritis, can play the role of anti-inflammatory and pain relief, but if there has been a pus situation, it is necessary to incise and drain the pus in time to discharge the pus, discharge the pus with the use of erythromycin ointment or iodine volts anti-inflammatory treatment, you need to pay attention to in the life of the urethritis to use a small dressing wrapped in urethritis, to avoid the dust or stains on the wound caused by the secondary contamination. If you have a pus-filled nail infection, it is recommended that you go to the hospital in time to receive professional diagnosis and treatment, and the medication should be used in accordance with the doctor’s instructions.