Final answer:
A person who has red-rimmed eyes and a runny nose but does not suffer from allergies or have a cold may show a warning sign of drug abuse. These symptoms can be indicative of drug use, particularly the use of stimulant drugs like cocaine or methamphetamine.
Step-by-step explanation:
A person who has red-rimmed eyes and a runny nose but does not suffer from allergies or have a cold may show a warning sign of drug abuse. These symptoms can be indicative of drug use, particularly the use of stimulant drugs like cocaine or methamphetamine. These drugs can cause blood vessels to constrict, leading to redness in the eyes, and they can also cause nasal congestion or runny nose.
Learn more about Warning signs of drug abuse