I heard getting root canal, makes the tooth weak during temporary filling stage. does this mean i shouldn't lick around the teeth to get food out?

Contact dentist: The key to successful therapy is getting the entire procedure done on a timely basis. There is no reason, other than financial to have a temporary on a long term basis. Speak with your dentist and ask what the tooth needs to finish. Depending on the level of decay or trauma, it might be as simple as a composite restoration or need a post and core and crown.

No problem: You can brush, floss, and lick without worry. I would avoid hard foods to help prevent fracture.