yes 17 year boy can use aspirin but in low dosage
aspirin also called as acetlysalicylic acid (asa)
there are used to reduce pain(analgesics) and fever (antipyretic)
there are no side effects if aspirin is used in low dosage some times aspirin is given to heart attack patient.
aspirin is no longer is used to cure flu,checkenpox
the side effects caused by aspirin is ulcer in stomach and damage of liver