A concussion does not cause numbness in the hands, and usually a concussion can return to normal within 2 weeks.
Concussion is a mild craniocerebral injury, there is no organic changes in the brain, only a transient brain dysfunction, usually less than 30 minutes, headache, dizziness, nausea and vomiting and other symptoms, usually in a relatively short period of time to recover.
Patients with mild symptoms, usually 1-2 days symptoms can be relieved, within 1 week can be fully recovered; patients with severe symptoms, the recovery time is longer, but usually within 2 weeks can be fully recovered to normal, the usual diet can eat more brain food, such as walnuts, black sesame, more fresh vegetables and fruits, pay attention to rest, reduce brain activity, which will help help the brain to recover.
It is recommended that patients should consult a doctor if they feel unwell, and should not be negligent so as not to delay their condition.