Yes, migraines have a tendency to run in families. Four out of five migraine sufferers have a family history of migraines. If one parent has a history of migraines, the child has a 50% chance of developing migraines, and if both parents have a history of migraines, the risk jumps to 75%.
It is a misconception that allergies cause headaches. However, allergies can cause sinus congestion, which can lead to headache pain. If you have allergies, the treatment for your allergy will not relieve your headache pain. The two conditions generally must be treated separately. See your doctor to ensure proper treatment.