hi,thanks for query.First of all aspirin
can not help in reducing blood pressure.Your family doctor is right,single elevated reading to this extent can not be conclusive to stamp you as hypertensive.Please avoid high salt in your diet,avoid junk food and take proper rest.Try stress
reliving medicines like yoga
which can definitely help.Avoid too much of tea or coffee.This all help you to lower down your blood pressure.
wishing you good health.