Unsure if this is filler or a cyst/burst blood vessel. What can I do? (Photos)

I had 0.8ml of lip filler in February. I’m May I noticed an area becoming raised and now I have a lump which looks like a cyst or blood blister on my lip. It’s pertruding from my lip now and is very noticeable, does jot appear to be healing. Unsure if this is filler or a cyst/burst blood vessel.