Brief Answer:
Smoking cannabis wont do any harm for you recently healed esophagus.

Detailed Answer:
Hello!

Thank you for the query.

Any smoking (including cigarettes and marijuana) does not affect esophagus directly. Tears in the digestive tract do heal very quickly. It usually takes few days. Its because digestive tract cells multiply very fast. So as you eat solid foods, smoking wont do any harm to your esophagus.
But you need to know that regular smoking increases the risk of esophageal cancer (as well as respiratory tract cancer, throat cancer, mouth cancer, larynx cancer, kidney cancer, bladder cancer). This is the only reason you should avoid smoking.

Hope this will help. Feel free to ask further questions.
Regards.

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