Long-term control medications. Many people with asthma need to take long-term control medications daily, even when they don't have symptoms. There are several types of long-term control medications, including the following. Inhaled corticosteroids.
However, certain illnesses, stress, or medication can disturb the delicate balance, causing the candida organisms to grow out of control, causing thrush. Medication that upsets the balance of microorganisms in the mouth and may cause thrush include corticosteroids, antibiotics, and birth control pills.
1 Diabetes is also one of the important causes for thrush in adults. 2  Continuous use of steroids can accelerate the growth of yeast infection in the mouth and vagina.  Adults who wear dentures and those who smoke are at a greater risk for thrush in mouth.