What if a Lipoma burst?

i had a lupoma on my hip it really got irritated and become red and sensitive i went to the doctor and he said that my pans might have been too tight and about 2 days after i have seen the doctor it actually burst it looked like wet tissue paper that came out .....but now 2 months down the line i still have a brown hole on my hip that just wont go away .....what do i do now?? it really look nasty .please help me