welcome to healthcaremagic.
well you have to go and see a doctor as the treatment is surgical removal of the cyst
three ways of doing it.
- incision and drainage
with removing hair follicles and packing the cavity with gauze
- incision and drainage with removal of pus and hair and sewing up the edges of fibrous ends to make a pouch
-incision and drainage with immediate closure of the wound.
after the surgery at home keep wound clean and covered while it heals wash the area of the wound once a day.
avoid wearing tight clothes during and after the healing process
try not to sit for long periods to stop recurrence.
another way is if you are brave enough you can drain it yourself use a hot compress to bring the cyst to the head then you can drain the pus by using a sterilized syringe.
lieing down in a bath tub with salty water might help to reduce the soreness.
hope to have answered your query
wish your husband a quick recovery.