Hi,Dear,Thanks for the query to HCM.I went through your query and understood your health concerns.
In My opinion- that lump on back of your boy friend Infected Sebaceous
Cyst / Or could be -Chronic boil -folliculitis- with sub- acute stage, which could be dealt by your family doctor.
Treatment-
a-Surgical
Drainage from your ER doctor is needed,as you already pinned it and its still there,else it would complicate further with infection and
abscess , which is worst and painful.
b-Antibiotics x 5 days form ER doctor.
c-Dressings
d-Tb
NSAID to control pain and inflmation.
This would recover in 5-7 days time.
Hope this would solve your query.
-Hope this would help to resolve your worrysome query on your next visit with your family GP doctor.
Wellcome for further query to HCM in this regard.
Wishing you fast recovery.