Answer

Yes, in many Jain traditions, during upvas, using boiled and cooled water to gently rinse/brush without toothpaste is generally considered more acceptable than using toothpaste.

However, whether tongue scraping is allowed depends on your family, sangh, or guru’s maryada. Some people avoid it during upvas because it may stimulate saliva, taste, or discomfort.

Explanation

If you are feeling weird or uncomfortable:

• You may gently rinse your mouth with boiled and cooled water.
• You may brush gently without toothpaste, if your tradition allows it.
• Avoid toothpaste, mouthwash, flavored powders, or anything with taste.
• For tongue scraping, do it only if it is accepted in your household/tradition; otherwise avoid it during upvas.

Be careful not to swallow the water.

Spiritual Understanding

In upvas, the main intention is restraint, simplicity, and awareness. Cleaning the mouth for hygiene is different from taking taste or comfort, but Jain practice gives importance to following proper maryada.

Takeaway

You can gently clean your mouth with boiled and cooled water without toothpaste, but for tongue scraping, follow your family/sangh/guru’s guidance. If you feel unwell, prioritize health and consult an elder or guru.