I have been using Symbicort inhaler for COPD for a couple months?

Hello ginarob66. I also have COPD and Symbicort 160/45 is one of three puffers that I use. (Spiriva and Combivent being the other two) Two inhalations in the morning and two in the evening. In my case I choose/use a peppermint or a cough drop after rinse. Regards pledge

It sounds as though you have oral thrush. Unfortunately oral thrush is a common side effect of steroid inhalers.
Having a good inhaler technique and using a spacer device may reduce the risk of thrush. It is good that you are rinsing your mouth after using the inhaler, as this helps remove any drug particles left in your mouth.
You should see your doctor for treatment and ask about reducing your dose of steroid in your inhaler to the lowest level needed to control your COPD.
https://www.drugs.com/cg/oral-candidiasis.html

If your tongue has a white coating or if it itches or is sore, see your dr. It could be yeast. Biotene is the mouth wash that might help.

There's. a new dry mouth gel you use twice a day it's OTC. It helps a lot.