You don't have blisters, but you may have lumps of filler. It makes me intensely nervous that you say "the lady who did this" and not "the doctor or physician". Additionally, hyaluronidase, which is what I am assuming she injected afterwards to get rid of the filler, is also an art, so it sounds to me like you may need to consult, in person, with a different "artist" and one that is a doctor and has a vast amount of experience with fillers and hyaluronidase. Fillers and hyaluroidase take a great amount of skill and knowledge - quite clearly you are this person's first attempt at using hyaluronidase - so you may just want to see someone with more experience.
"This answer has been solicited without seeing this patient and cannot
be held as true medical advice, but only opinion. Seek in-person
treatment with a trained medical professional for appropriate care."