I want a more sustainable natural way of dealing with blood pressure than using prescription drugs which tends to only suppress the symptoms. Surgery is very expensive and many people cannot afford. If the arteries are blocked, is there any natural means by which they can naturally be cleaned to bring relief to the person?

Reduce salt intake. Very natural, but a little difficult.
Proper exercise. Very natural, a little difficult and probably necessary. If these don't work, then it is drugs.
Huge myths about diet and herbs. Beware.