Gargle with the solution and hold it in your mouth for about 5 minutes.
Swallow gradually as it mixes with saliva, then drink a glass of water.

Active mineral water diluted to the point where the bitter taste is not noticeable.
Try increasing the consumption amount

Try applying the solution to the wound.
Dampen the affected area with the solution and apply it.

If you often have diarrhea, try reducing the amount and drinking it slowly.

Try using a nasal spray.

Since it's not water, there may be a reaction when consumed. It can appear immediately or take a few days. Like COVID-19 symptoms vary from person to person, although the symptoms are the same, there may be differences in severity. If a particular area is not feeling well for a few days, it may be a "healing crisis." You can reduce the amount for a few days and then increase it again.