Is It a Cold or the Flu? Symptoms. Cold. Flu can be life-threatening. Prevention. None. Annual vaccination; antiviral Health : Health Concerns : Cold and Flu Prevention and Treatment. Cold and Flu Prevention and Treatment Is It a Cold or the Flu? Symptoms. Cold. Flu can be life-threatening. Prevention. None. Annual vaccination; antiviral Cold and Flu Prevention For Children Right when cold and flu season starts, you can start your child on small, regulated doses of echinacea Health : Health Concerns : Cold and Flu Prevention and Treatment. Cold and Flu Prevention and Treatment