1. Active follow-up and regular review, usually one week, is appropriate to keep abreast of changes in the condition so that the doctor can make adjustments to the treatment plan. 2.Avoid the affected ear from entering water and prohibit swimming. The affected ear can be protected by non-absorbent materials when taking a bath. 3. Avoid skimming the nose and holding your breath as much as possible to prevent bacteria in the nasal secretions from entering the tympanic chamber and reinfecting it. 4. Avoid pulling out the ear by yourself as much as possible to avoid damaging the tympanic membrane or tympanic chamber mucosa and secondary infection. 5.Please communicate with your doctor during the follow-up checkup and ask him/her to help you clean the ear canal so that the ear drops can be applied to the effective area. 6. Pay attention to keeping warm and avoid catching a cold as much as possible.