I have been coughing continuously for more then 3 months now. i have had 3 courses of antibiotics and completed several sinus treatments including steroids. what can i do to make it go away.

Maybe LPR-see GI doc: Exposure of the vocal cords to stomach acid & pepsin will result in inflammation of the vocal cords (as is also often seen with acid regurgitation). Acute laryngitis may result, but watch out for chronic hoarseness, throat clearing, airway spasms, bronchitis, an asthma-type presentation, and even a higher risk of throat cancer. Impedance pH testing with a symptom diary can best characterize this.

Establishing : The cause of chronic cough. Common causes like post nasal drip, Asthma, GERD must be eliminated especially without other accompanying symptoms like night sweats or weight loss

Mgt: More testing may be needed, and a visit with a pulmonary specialist may be helpful. Have you been tested for TB? A chest imaging study can provide more information. Do you smoke? do you produce sputum? A virtual consultation may be helpful to you and your provider.