Why does swelling recur after a bruise?

Hello everyone,

I bruised the back of my hand 3-4 days ago when I accidentally hit it with a hammer.

Now the swelling and pain keep coming back. There's nothing seriously broken; the hand surgeon assured me this would be an emergency. She also ruled out a tendon injury.

However, during these attacks I suffer from restricted movement and pain which severely limits my everyday life and my work, as I work a lot with tools etc.

I put a lot of Voltaren on it and apply a pressure bandage with cooling, but it only helps in the short term.

What should I do or does anyone have a tip?

Lg

The swelling is clearly visible in the picture. My knuckles are completely red and blue, and the entire back of my hand is greenish/yellow/blue.