I had a bilateral in 2017 and had a seroma form three times on the right side. The first time it was aspirated, there was around 250 ml and the second time, a week later 160 ml. When it filled the third time, the decision was made to just leave it and see if it stabilised and cleared on its own, as my surgeon was concerned about an infection which is a risk, even with all the appropriate measures. I had my Frankentitty almost under my arm, but it never got too large again, and eventually got reabsorbed by my body. I actually found that wearing a tight t shirt two sizes too small to be better than loose tops. The movement of fabric over my chest and scar felt like when you've become very sunburned, then have beach sand stuck to the skin and a rough towel being used to brush it off. The very slight pressure all the way around also helped to stop the fluid in my seroma from sloshing about. I hope things settle for you soon.
