Answer
Rinsing and spitting removes medicine left in the mouth and reduces oral thrush and throat effects.
Sources for this answer
- Asmanex Twisthaler 400 micrograms Inhalation Powder — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.