Doctor Appointment

(1). I feel sorry for your terrible experience of your fathers illness. Please visit Lahore or Islamabad private hospital ( if convenient). It seem like your father must had something left inside it could be a duet or washing fluid which was not removed and not dried and is invisible for normal USG abdomen. They must be examined by expert radiologist and surgeon. Secondly mostly continues use of drug can cause fever and pain. Stop self medicating or GP treatment. Visit expert reassessment of surgery . Bless you.

(2). Please do visit an expert experienced ENT surgeon. This swelling might be benign lymphoma ( not cancer but tumor). Your ENT surgeon may remove it. Consider two different ENT surgeon opinion without telling them that you have other ENT checkup..

(3). Aoa , def. U should review with an ENT person . Looks like inflammatory lesion of parotid aka sialadenitis . U should use clindamycin 300mg twice a day for atleast 7-10 days . Be mindful of allergic reaction to drug . Also take plenty of fluids and use chewing gum to stimulate saliva production from parotid . Avoid taking excessive coffee and tea . Rule out diabetes . If all these things dont work we can move to next phase of management.

(4). Please visit any good psychologist for cognitive behaviour therapy ( CBT) and no drug. Besides you also need physical activity for about an hour in morning time. You also need listening good music of your choice daily for 10-15 minutes at night. Also, you should start reading books ( anything , history, science fiction, real novel biography or romantic novel or anything) at night time. Bless you.