My husband complains of a white salty liquid that periodically oozes out of the back of his mouth. The dentist checked the teeth, pulled one, it has healed, there is no infection. The eye ear throat doctor has examined him and taken an MRI of the salivary glands. The oral surgeon found nothing. During the days when this liquid oozes into his mouth, it burns and that side of his mouth then is very dry and hurts. Do you have a suggestion? Thank you.