I have epilepsy, can I take Fish Oil and Coconut Oil?

Good night ! Doctor, I urge the doctor to clarify a doubt of my favor; I do Epilepsy treatment with the Phenobarbital medicine, but I want to consume two types of natural medicines, one calls fish oil (omega 3) and the other one calls coconut oil, can it do good or bad for my health? Because I've been taking Phenobarbital for many years now, I take 1 a day and I want to start taking these natural remedies because they say it's good for health, but I'm a little afraid of mixing lots of medicines, I'd love to have your opinion if I can take it or not, I'll be waiting for your response, since I thank you, thank you