Treatment plan 1. In the acute stage, bed rest should be taken, the affected limb should be elevated, and local cold compresses or placing the limb in cold water should be applied to relieve pain; any local stimulation causing vasodilation should be avoided after the acute stage. (1) Platelet hyperplastic erythema limb pain can be treated with small dose aspirin 50-100mg/d orally. (2) β-blockers such as propranolol 20-40mg/d orally, 3 times/d. (3) 0.15% procaine 500-1000m intravenously, 1 time/d, 5 days as a course of treatment. (4) Adrenocorticosteroid short-term shock therapy may also control the symptoms. (3) Local nerve block is effective in idiopathic red fever limb pain, and supra-ankle loop closure, sacral epidural closure or lumbar sympathetic ganglion block can be chosen; patients with secondary scarlet fever limb pain should eliminate or intervene in related etiologies. Medication safety 1. The disease is most commonly seen in young adults aged 20 to 40 years, with more males than females. The feet are most often involved, followed by the hands. The duration of the attack varies, from a few minutes to a few hours or even days, but mostly for a few hours and heavier at night. 2, to prevent and control the disease should prevent cold, heat on the limbs of the stimulation, quit smoking can reduce the attack. Elevate the affected limb during an attack, and give cold compresses, medication, physical therapy and acupuncture treatment. Prevent excessive touching and hot compresses on the affected limb. When there is no seizure, give local massage to reduce the effect of seizures. 3, trauma, overheating, frightened, covered, walking and emotional excitement can be triggered, non-seizure period mostly asymptomatic. Exposing the affected foot to cold air or immersing it in cold water can relieve the symptoms. Health tips 1, cold season, pay attention to limb insulation, shoes and socks to keep dry; long hours in a car, standing, walking, it is advisable to change the posture in a timely manner, regular activities out of the car, can prevent or reduce the attack, or reduce symptoms. 2. Symptomatic treatment is the main treatment. Local cold compresses or cold water immersion of the affected limb can be given to alleviate the symptoms during seizures; elevate the affected limb and avoid adverse stimulation such as overheating or stroking. 3.Oral rifampin, chlorpromazine, rifampin, etc. may improve the symptoms. 4.Intersacral nerve block and lumbar sympathetic nerve block have better efficacy. 5.The disease often has remission, relapse, and may have a chronic course. Most of them have good prognosis and can recover naturally.