HA after concussion: The symptoms associated with postconcussion syndrome (e.g., headaches) are greatest within the first 7 to 10 days for most patients. At one month, symptoms are improved and often resolved. The vast majority of patients have largely recovered by three months. A minority (10 to 15%) have symptoms lasting one year or longer. Unfortunately, it is not possible to know how much longer they will last.
Answered 5/15/2015
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