There are many reasons for dizziness in one half of the body. If it is accompanied by symptoms such as limited movement of one limb, headache or numbness of limbs, or unclear speech, it may be related to cerebrovascular disease, which may be related to cerebral infarction, cerebral hemorrhage, cerebral thrombosis, etc. If the symptoms are aggravated by frequent neck discomfort, prolonged head bowing or sedentary, playing with cell phones and computers, they may be related to cervical spine diseases. Low blood pressure, anemia, and overexertion may also lead to dizziness on one side. Dizziness on one side of the head, accompanied by head swelling, light-headedness, blurred vision, aggravation after activity, and fainting may be related to Meniere’s syndrome. Dizziness may also be related to abnormal blood sugar, severe sleep deprivation, fever, etc. You should go to the hospital for examination to determine the cause before treatment.