The infection in the brain can cause a brain injury so Treatment should focus on neurogenesis and neuroplasticity.

Sustained aerobic exercise promotes neuroplasticity and neurogenesis so try brisk walking or other cardio exercises.

Rest - The brain needs rest and a quiet environment to repair itself so take mini breaks during the day to give the brain a chance to recover. Avoid stress because that will reduce neurogenesis.

An aggressive diet regiment will also help neuroplasticity and neurogenesis.
Stop eating -

• soda
• sugar/fructose/corn syrup
• wheat
• processed foods
• fried foods
• refined carbohydrates
• foods with added sugar
• processed vegetable and seed oils (polyunsaturated fats)
• (safflower oil, canola oil, sunflower oil, corn oil, soybean oil, cottonseed oil)
• Trans fats (shortening, hydrogenated vegetable oils, margarine)

Eat this instead:

• Replace wheat with whole grains. (Paleo flour, quinoa flour, almond flour, coconut flour, chickpea flour, etc)
• Eat a moderate amount of protein, lots of vegetables, some fruit
• cook with lots of healthy saturated fats (animal fats, coconut oil, butter, olive oil).
• Make bone broth and incorporate it into your diet regularly.
• Eat cold water fatty fish for the Omega 3 DHA
• Eat organic foods because pesticides contribute to neurodegeneration