Most common cause for keratosis pharyngeus or whitish debris over tonsils is reflux laryngopharyngitis which is type of acidity related disorder. You may need to take anti reflux medications for few weeks for long term benefits. It is not really a serious condition
Next Steps
Consult nearby ENT specialist for confirmation of diagnosis and appropriate treatment if required
Answered2018-05-06 04:33:09
Let others know if this answer was helpful