My dad, 86years old, was a smoker for about 40+ years and still sneaks a puff or two a day.  He has been diagnosed with chronic bronchitis.  He has had throat surgeries to remove some cancerous growths.  He has had trouble with his voice becoming no more that a whisper since then. Is there anything that can be done to he had recover more of his voice?
Hi thanks for contacting Chat Doctor. Your father having smoking induce cancer growth in throat .... That malignant growth might spread to larynx and affected it ... So voice is affected.... Get your larynx examined by laryngoscopy ... If inflammation there steroid given ... If cancer metastasis suspected radiotherapy or chemotherapy needed according to type and extent of malignancy.... For bronchitis spirometry done to rule out severity and treatment accordingly... Bronchodilator might have given.... Avoid smoking strictly otherwise condition deteriorate fast.... Consult physician for your case ... Take care