He was very bald, and had complained of feeling his head cold during the night.
There is much sense in the old adage—“Keep the head cold, and the feet warm.”
Inhaling the camphor in this way will often make it easier to breathe through the nose in case of a head cold.
head cold n.
A common cold mainly affecting the mucous membranes of the nasal passages, characterized by congestion, headache, and sneezing.