Could a Hot Compress Increase/affect Diffusion of Dysport?

I had dysport on my forehead a week ago for the first time. After a few days I had a headache so I used one of those pillows that you put in the microwave and heat up.. I use this a lot usually. A few days had passed so I was hoping it would have no effect on the treatment. Now I'm feeling as though the effects are a bit stronger than I was wanting, although I know the Dr made efforts to be conservative. Im wondering if I possibly increased diffusion more than intended with the heat. thank you:>