Most concussions resolve on their own within two weeks for adults and four weeks for children, but what you do during that window matters. Treatment centers on protecting the brain while it heals, managing symptoms as they come, and gradually returning to normal activity in a structured way. There is no medication that “cures” a concussion. Recovery is the treatment.
What Happens Inside Your Brain
A concussion triggers an energy crisis in the brain. The impact stretches and disrupts nerve cells, causing ions to flood across cell membranes in ways they normally wouldn’t. Your brain’s energy pumps go into overdrive trying to restore balance, burning through glucose at an abnormally high rate. The problem is that blood flow to the brain stays the same or even drops during this period, creating a mismatch between the energy your brain demands and the energy it can actually get.
This metabolic disruption can last 7 to 10 days. It’s the biological reason behind the universal advice to rest and avoid overexertion early on: your brain is already running an energy deficit, and pushing it harder makes recovery slower and symptoms worse.
The First 48 Hours
The current international consensus on concussion recommends relative rest, not strict rest, for the first 24 to 48 hours. That means you can handle basic daily activities like getting dressed, eating meals, and short walks, but you should cut back on screen time and avoid anything mentally or physically demanding. Lying in a dark room for days is no longer considered helpful and may actually slow recovery.
After those initial two days, you can begin light activity that doesn’t worsen your symptoms. A short walk, light household tasks, or limited reading are reasonable starting points. The key principle is to stay below the threshold that triggers or intensifies symptoms like headache, dizziness, or difficulty concentrating. If an activity makes you feel worse, back off and try again the next day.
Danger Signs That Need Emergency Care
Most concussions don’t require a trip to the emergency room, but some head injuries cause bleeding or swelling that does. According to the CDC, go to the ER immediately if you or someone you’re watching develops any of these after a head injury:
- Seizures or convulsions
- Repeated vomiting
- One pupil larger than the other
- Slurred speech, weakness, or numbness
- A headache that keeps getting worse
- Increasing confusion, restlessness, or inability to recognize people or places
- Loss of consciousness or inability to stay awake
For infants and toddlers, the same signs apply, along with inconsolable crying and refusal to eat or nurse.
Managing Headaches
Headaches are the most common concussion symptom and often the most persistent. How they’re treated depends on what type of headache you’re experiencing. Post-concussion headaches tend to fall into two patterns: tension-type (a band of pressure around the head) and migraine-type (throbbing, often with nausea or light sensitivity).
For tension-type headaches, over-the-counter anti-inflammatory pain relievers are the preferred first option. For migraine-type headaches, a different class of medication called triptans is typically used for acute episodes, while supplements like magnesium, vitamin B2, and CoQ10 have evidence supporting their use for prevention. A multidisciplinary approach that combines medication with physical therapy, relaxation techniques, or cognitive behavioral therapy tends to work best for headaches that stick around.
One important caution: overusing pain relievers in the weeks after a concussion can cause rebound headaches, where the medication itself starts triggering headache cycles. If you’re taking pain relievers more than two or three days per week, talk to your provider about a preventive approach instead.
Sleep, Screen Time, and Daily Life
Sleep is one of the most important recovery tools available. Your brain does critical repair work during sleep, so prioritize a consistent sleep schedule, keep your room dark, and avoid screens for at least an hour before bed. Melatonin at a low dose (around 2 mg at night) has moderate evidence for supporting sleep quality during concussion recovery.
Screen time is a common trigger for symptoms. Phones, computers, and TVs demand sustained visual focus, rapid eye movements, and cognitive processing, all of which strain a recovering brain. Limit screen use early on and add it back gradually as your tolerance improves. If screens trigger headaches or dizziness, that’s your signal to stop.
Nutrition That Supports Brain Healing
Your brain’s metabolic demands increase after a concussion, and certain nutrients can help meet them. The supplements with the strongest current evidence include creatine monohydrate (which helps restore the brain’s energy reserves), omega-3 fatty acids with an emphasis on DHA (a key structural component of brain cells), and branched-chain amino acids. Creatine and branched-chain amino acids have level 2 evidence, the second-highest tier, meaning they’re supported by well-designed studies though not yet by large-scale randomized trials.
Magnesium, riboflavin (vitamin B2), and choline also have supporting evidence at level 3. These are generally safe, widely available supplements, but dosing matters. For omega-3s, the studied range is 2 to 4 grams per day with at least 2 grams coming from DHA. For creatine, the studied protocol is 20 grams per day split into four doses. These are higher than standard supplementation doses, so it’s worth discussing them with a healthcare provider.
Returning to School or Work
Cognitive activity needs its own gradual return, separate from physical activity. Students recovering from concussion benefit from specific accommodations: reduced homework focused on key tasks only, extra time on tests (limited to one per day), access to class notes or permission to record lectures, and rest breaks throughout the day. If light or noise worsens symptoms, sitting away from windows, wearing sunglasses indoors, or using a quiet space for tests can help.
For adults returning to work, the same principles apply. Start with shorter days or reduced workloads and increase gradually. Tasks that require heavy concentration, multitasking, or long stretches of screen use will likely need to be limited at first. Most employers are willing to accommodate a temporary adjustment if they understand the timeline.
The 6-Step Return to Physical Activity
Athletes and active people should follow a structured, stepwise return to exercise. The CDC outlines six stages, with each step requiring a minimum of 24 hours before moving to the next. If symptoms return at any stage, drop back to the previous step and try again after another day of rest.
- Step 1: Return to regular daily activities (school, work) with medical clearance to begin the progression.
- Step 2: Light aerobic activity only, like 5 to 10 minutes on a stationary bike or a light walk. No weight lifting.
- Step 3: Moderate activity with increased heart rate and some head movement. Moderate jogging, lighter-than-usual weightlifting.
- Step 4: Heavy non-contact activity. Sprinting, full weightlifting routine, sport-specific drills without contact.
- Step 5: Full practice including contact, in a controlled setting.
- Step 6: Return to competition.
This progression typically takes about a week at minimum, but there’s no penalty for taking longer. Rushing it is the single biggest mistake people make, and sustaining a second concussion before the first one heals can cause significantly worse and longer-lasting damage.
When Recovery Takes Longer Than Expected
About 70 to 80% of concussed youth follow a typical recovery timeline. The remaining 20 to 30% experience prolonged symptoms. When symptoms persist beyond 10 to 14 days in adults or beyond 4 weeks in children, recovery is considered prolonged. If symptoms last beyond three months, the pattern is often called post-concussion syndrome.
Post-concussion syndrome doesn’t have a single agreed-upon definition, but it generally involves three or more of the following: headaches, dizziness, fatigue, irritability, memory problems, difficulty concentrating, and insomnia. People with a history of prior concussions, migraines, mood disorders, or learning disabilities tend to be at higher risk for prolonged recovery.
If you’re in this group, treatment shifts from watchful waiting to active rehabilitation. That might include vestibular therapy for balance and dizziness problems, vision therapy for eye-tracking difficulties, aerobic exercise therapy prescribed at a specific heart rate threshold, or psychological support for the anxiety and frustration that often accompany a slow recovery. The goal is the same as the initial approach, just more targeted: identify which symptoms are most limiting and address them directly.