Hi,Dear thanks for the query to HCM.
I went through the details of your query.
After studying meticulously about the health concerns you have,
In my opinion the lump mostly is Post-auricular
Lipoma,as you have history of similar lumps on abdomen/back etc.
There are other many reasons for such a lump(as Sebaceous Cyst/
Chronic lymphadenitis with
scalp infection/Chronic Boil /Congenital
Dermoid Cyst which need to be ruled out by clinical examination by ER Surgeon,which is advisable in your case too.
USG study and opinion of ER Surgeon would be advised for confirming the type of the post-auricular lump in your special case.
Hope this would help you to plan treatment with your doctor on your next visit.
Write excellent review and hit thanks after reading this,if you find this reply helpful to you,which would improve my rating and would help viewers of the HCM.
Welcome for any further query to HCM and to ME.
Wish you fast recovery.
Have a Good Day.
Dr.Savaskar M.N.
Senior Surgical Consultant