Is there any way to get rid of a seroma besides draining?

Most seromas do resolve with repeated needle aspiration, but some do not.  Another option would be to insert a drain like a Seromacath into the seroma for a week or so to allow it to stay flat and hopefully seal up.  If this doesn't work, an irritant called a sclerosant can be injected into the seroma space, the aim of which is to irritate the lining of the open area and promote scar closure.  In the most stubborn of cases, a return trip to the operating room is warranted to remove the chronic seroma lining and directly close the open space.  Hopefully your seroma will resolve without these more aggressive steps, but your surgeon should be willing to support you through the process.

Your plastic surgeon is taking the right measures to address the problem. Most seromas do resolve with aspiration & compression. Considering that it's been over 5 weeks since the first aspiration, it might have formed a cavity which may require surgical intervention. Do discuss the possibilities and the treatment with your PS, I am sure he will be able to help you out. All the best!

It sounds like you and your surgeon are doing everything that is usually done to make the seroma resolve. It usually takes a few drainage procedures for it to resolve completely. Try to wear your compression garment at all times and limit your activity as much as possible. Most seromas resolve with the treatment plan that you are on. 

My protocol for seromas are as follows 
Allow at least 2 weeks of adequate drainage of the area 
If the drainage is less than 20 cc in a twenty four hour period then remove one drain (I usually have 2) 
If there is a persistent seroma after the last drain is removed, consider injecting a steroid, betadine or a scerosant 
If the seroma persists excise (or re excise) 
My experience with seromas are that they have to be drained.  This is provided that there is actual fluid present.  You may be able to get an ultrasound and have it drained under ultrasound guidance.  I think at your early stage it is very important to verify that fluid is present
Hope this helps
Dr. Dillon

Your surgeon is taking the right steps to resolve your seroma outside of surgery.  Try limiting your activity and wear your compression garment like you are doing.  Good luck. ac