Answer:
decongestant causes blood vessels to narrow, increasing blood pressure.
Step-by-step explanation:
A decongestant, is a pharmaceutical drug which helps in relieving nasal congestion(stuffy nose) in upper respiratory tract.
Decongestants can be consumed from the nose by using an inhaler which produces systemic effects , primarily stimulation of central nervous system.
decongestant causes vasoconstriction (contraction of blood vessels) which causes rise in blood pressure.