Hi,
How is your son? One type of seizure disorder, absence seizures, are characterized by a brief impairment of consciousness that lasts for a few seconds.This is more common in children than in adults and often with an abrupt onset and prompt recovery. If the EEG results were both abnormal, it is best that he take the medication as prescribed. Absence seizures usually can be controlled with anti-seizure medications. It is best that you discuss this with his doctor to ease any doubts. Children with a history of absence seizure must be supervised carefully especially in activities such as swimming or bathing because of the danger of drowning. Take care and do keep us posted.
I'm no expert or anything, but I've heard of people who already have epilepsy becoming prone to seizures from food allergies. Definitely follow the more expert advice, but it won't hurt to check for food allergies. A lot of people are allergic to wheat or gluten and a lot of people are allergic to milk. If it's not a "true" allergy, it can still be food sensitivities. Google information for food sensitivities and for food elimination/food challenge diets.
Actually, this makes sense to me because people with migraines have many of the same symptoms as people with epilepsy, minus the outward seizures. And, food sensitivities do definitely trigger migraines in people.