What actually helped you get rid of housemaid's knee?

I have been struggling with a really swollen, tender lump on the front of my kneecap after doing a lot of DIY on the floors at home. It is getting to the point where even having trousers touch the skin feels uncomfortable, and kneeling down is completely out of the question. I have tried resting it and using ice packs when I remember, but the swelling just does not seem to want to budge. For those of you who have dealt with prepatellar bursitis, how long did it take for that fluid to actually go down? I am curious if you found that specific supports or certain types of kneeling pads made a difference once you started getting active again. If you are worried about the pain or if it looks red, please do have a chat with your pharmacist or GP.