Annoying as they can be, the good news is that mucoceles are harmless, with no risk of transformation into skin cancer. Rarely, the cyst can rupture into the tissue of the lip, causing inflammation and granuloma formation, which ultimately results in scarring; however these cases represent a minority.
Budesonide is a glucocorticoid steroid used in inhaled formulations for the treatment of asthma, COPD and non-infectious rhinitis (including hay fever and other allergies), and for treatment and prevention of nasal polyposis.
1 It is a corticosteroid, sometimes known as a glucocorticoid or steroid.  It is used to treat a variety of conditions by reducing inflammation. Budesonide is used to treat asthma by reducing inflammation in the lung which helps to keep the airways open and make it easier to breathe properly. Budesonide is taken using an inhaler device to treat asthma so that the medicine is delivered directly to the lungs where it is needed.