A pulsating sound in the right ear may be associated with boils on the external auditory canal, otitis externa, etc., which usually need to be treated with antibiotic medication or topical ointment. 1. External auditory canal boils: External auditory canal boils are mainly associated with Staphylococcus aureus infections, and may usually manifest as ear pain, hearing loss, tinnitus, etc. Sometimes it can be treated with oral medication such as clarithromycin capsule under doctor’s supervision. 2. Otitis externa: Otitis externa is mainly caused by pathogen infection, usually manifested as edema of the skin of the ear canal, secretion in the external ear canal and other symptoms, there may also be a pulsating sound in the right ear, which can be treated with medication such as gentamicin hydrochloride ointment under the guidance of a doctor. Meanwhile, it should be noted that in daily life, you should also pay attention to keep the ear hygiene, also do not excessive ear digging or swimming, to avoid the attack of pathogenic bacteria. After the occurrence of this symptom should actively consult a doctor for a clear diagnosis after a systematic examination, and follow the doctor’s instructions to standardize the use of medication and treatment.