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.
Biguanides are a class of chemicals that include some important pharmaceutical drugs. Metformin, thought to be the most-prescribed anti-diabetic drug, is in this class. There is also a drug for treating malaria called proguanil that is a biguanide. This class of compounds was originally derived from the French lilac plant.