It is possible for a person to get hives if they are highly sensitive to smells. This can happen to those who are allergic to certain perfumes and other floral scents.

sensitive can describe a sensitive person

yes

Ted Zeff has written:

'The highly sensitive person's survival guide' -- subject(s): Self-actualization (Psychology), Sensitivity (Personality trait), Stress (Psychology), Stress management

'Highly Sensitive Person's Companion' -- subject(s): Self-actualization (Psychology), Sensitivity (Personality trait), Stress management, Stress (Psychology)

Maribeth wore sunglasses even inside; her eyes were highly sensitive to light.