Final answer:
The contraindications to dexamethasone under the Bronchoconstriction Medical Directive include various symptoms such as cough, chest tightness, and wheezing.
Step-by-step explanation:
The contraindications to dexamethasone under the Bronchoconstriction Medical Directive include airway irritation, eye and skin irritation, dyspnea, cough, sore throat, chest tightness, wheezing, and bronchospasm.