Cases of non-suppurative sinus involvement are not at all uncommon.
The so-called “Vacuum sinuitis” which results from a closure of the
normal opening, resulting in inflammation without pus formation, is
responsible for many of the complicated cases of referred pain, which
are so often improperly diagnosed. Chronic headaches and the various
symptoms of fifth nerve affections, the neuralgias of the head, are
frequently caused by non-suppurative sinus involvement.
=Treatment.=—The treatment consists of establishing good drainage
and proper ventilation of the affected sinus or sinuses followed by
thorough intranasal treatment as explained above. The osteopathic
corrective work must not be neglected.