It looks like you are referring to Gleazy Gel, which is commonly used for oral care and mouth ulcers.

Below is the description and usage guide in both English and Bengali (বাংলা).

English Description

1. Indications (Uses):

Mouth Ulcers: Provides relief from painful sores inside the mouth or on the tongue.
Gum Inflammation: Helps reduce swelling and pain in the gums (Gingivitis).
Denture Irritation: Relieves pain caused by braces or dentures.

2. How it Works: It usually contains a combination of an Antiseptic (to kill germs), an Anti-inflammatory (to reduce swelling), and sometimes a Local Anesthetic (to numb the area and provide instant pain relief).

3. How to Use:

Wash your hands thoroughly.
Apply a small amount of the gel onto the tip of a clean finger or a cotton bud.
Gently dab it onto the affected area (the ulcer or sore spot).
Do not eat or drink for at least 30 minutes after application so the medicine can stay in place.
Use 2 to 3 times a day or as directed by your dentist/doctor.