abdominal hematoma after spine surgery

My husband had spine surgery in June 2009. The surgery was done with back and front incisions.  He had no problems from the surgery itself, but a few days after, while still in the hospital he complain from a big pain in his abdomen.  They found he had a large hematoma or I think it can also be call a sematoma.  They put a drain which seem to work for a while and then the hematoma got bigger and they did surgery on him to clean it up.  He has been with a drain for a week now and it does not seem to be coming to an end.  They did a scan and they said the liquid is increasing.  The surgeon wants to send him home with the drain.  My question is:  How long do this things take to finish draining and heal?  He is getting very depressed and I am concern for him.  They also said he has an infection and they want him to have infusion therapy at home for two months.  Any help will be appreciated.

[tony1102]

i had lumbar fusion surgery in november 2008 and developed a hematoma at the incision site in the front it drained for almost 3 months just keep it clean with  .9% sodium chloride  keep it covered and hopefully he will be ok