Question: how do you get rid of a one sided headache?
Answer: apply a warm or cool compress to your head and/or neck.
soak in a warm bath, practice deep breathing, or listen to calming music to relax.
take a nap.
eat something if your blood sugar is low.
take an over-the-counter pain reliever such as aspirin, ibuprofen (Advil), or acetaminophen (Tylenol)