Dysport injection side effects, I had a Dysport injection 2 months ago. Any suggestions? (photos)

Hello, The first two weeks I have experienced headaches and nausea .On the left appeared elliptical spot diameter of about 3 cm and above drop zone .It seems that the material spread down to the cheek area. On the right side appeared little edema which appears highlighted in the image. The wrinkles are gone but I'm afraid to make a further injection when the time comes that the situation could worsen .Is it possible, and I am sensitive to this matter and it would be better to use Botox

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