Hi welcome to Health care magic forum,
usually origin from ear itself (called external ottitis ) or origin from other area like cervical spine
, eustachian tube,oropharyngeal area, even from laryngeal area called as referred otalgia.
of voice and phlegm may indicate pathology in larynx, according to WHO guideline hoarseness of voice more than 4wk, need a thorough laryngeal examination to exclude any laryngeal pathology.
In my opinion you must urgently consult an ENT specialist
for further investigation.