Certain viral or bacterial infections can cause inflammation of the epiglottis, a condition known as epiglottitis, which is considered a medical or surgical emergency. Why do you think epiglottitis is so dangerous

The inflammation of epiglottish is called as epiglottitis.This is mainly caused by a bacteria H.influenzae type b that causes burning to that region.

Explanation:

The symptoms of epiglottitis is dangerous as it causes fever,throat pain,difficulty in swallowing,hoarseness of voice etc.

It also causes stridor disease which often leads to illness,anxious,slow breathing ,swelling of throat,cyanosis,asphyxiation etc.

This is a bacterial disease that mainly caused by H.influenzae.

This disease is linked with other diseases like graft versus host disease,lymphoproliferative disorder etc.

This disease can be cured by laryngoscope inspection.

Vaccine including Hib vaccine, rifampicin, corticosteroids, vancomycin ,clindamycin,ceftriaxone antibiotics are used to prevent this disease.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.