爛聲ge 問題

我幾年前成日唱歌(而家小左好多), 以前差唔多一星期去3-4次, 咁一向都好正常, 但係到左05年 ge winter, 個喉嚨開始有d痛, 可能因為成日BBQ, 同埋個期好鍾意唱D '哎' 歌 such as Beyond's and 林子祥 ge 敢愛敢做. 之後痛緊都keep 住唱, 到有一次病咳左成個月(Non Stop地咳) ,先去睇醫生, 佢話我有慢性支氣管炎.... 咁再過一排冇再咳, 再去唱歌ge 時候成把聲都唔同曬(超多人咁講), 又成日走音(以前好小), 又唔夠氣(食煙)...把聲又沙(食煙)...到而家好左DD(前排多唱返),但係把聲都係同以前好唔同...
其實我把聲係唔係已經廢左武功?? 定只係把聲轉左??
同埋我點先可以將把聲變返以前咁..有冇得養返好佢...同埋點養??
Thx X trillion