The patient experiences dizziness when lying flat, but gets better when lying on his or her side. The first condition is clinically considered to be otolithiasis or vertigo. Otoliths are usually caused by the dislodgement of stones in the semicircular canal, which stimulates the semicircular canal and causes vertigo, and sometimes the patient may be too swirling to open his eyes. In terms of treatment, the patient needs to go to the hospital to have the dislodged otoliths restored to the belly of the jug to reduce the dizziness of the patient. The second condition is vertigo, which is usually caused by dizziness, nausea and vomiting after excessive exertion. Patients may maintain a position after, for example, lying on their side, and the vertigo will improve significantly. In terms of treatment, patients are advised to take oral medications to improve circulation, such as nicergoline tablets or ginkgo biloba extract tablets to relieve symptoms.