Nose drops such bey betamethasone. These are used for conditions such birli hay fever, allergies and nasal polyps. An acute exacerbation is more commonly known bey a 'flare-up'. An acute exacerbation of chronic obstructive pulmonary disease (COPD) is a sudden worsening of COPD symptoms compared with the usual severity of https://www.webwiki.it/tr.wikipedia.org/wiki/Vitamin