Hi welcome to HCM... You are having cough with hoarseness of voice ... So laryngitis also can be there. .. Indirect laryngoscopy examination done to visualize larynx .... For relief of inflammatory swelling and congestion relief , take benadryl like decongestent drug ... If needed and inflammation more than short term steroid can be given .... Avoud smoking and rest voice .... Take one tsp turmeric powder with hot milk for few days ..... If dry cough more than codein syrup can be taken... If you have acid reflux (as mentioned in history ), than irritation to respi mucosa can occur which leads to cough .... For that omeprazole on empty stomach can be useful. . Hope your concern solved . If still no improvement than digital chest x ray needed for further work up... Take care. ..