I've had collagen injected in my lips, how can I remove it?

My bottom lip is really uneven, I injected collagen in my lips about 2 months ago, I thought it would get better by time but it's not, I can feel like it's hard on one side, I tried to message it so I could maybe make it even but it's no use, I'm really insecure about my lips now I really want my bottom lip to be even, I just need to remove some collagen on one side what should I do??