Laryngeol sensory neuropathy cure?

I injured by voice due to singing/yelling and after singing with a minor injury it became a permanent globus sensation. Specialist said there is nothing wrong with me and there is nothing wrong with the vocal cords.

I am wondering if you guys know any cure to this, I am in Canada and doctors are strict with drugs and wouldn't give me anything such as anti - depressants.

I am wondering if yelling can cause a hypersensitive larynx and if anyone found a cure.