In the following graphic, we will show you the difference between Vector art and the other, more common type of computer graphic, Raster art: Youâll notice how, in the Raster art file, the edges of the art become distorted when the picture is enlarged.
The positive effects of botulinum toxin injections can last up to 16 weeks, sometimes longer; although many people find that the injections need repeating before this and usually attend a clinic around every 12 weeks.
After the injection, the treatment takes effect gradually over 4â7 days, sometimes longer. Where it is a suitable treatment, botulinum toxin provides significant relief for the majority of people but it is not perfect-usually mitigating symptoms rather than completely eliminating them.hen injections are started, it can take a few injection cycles for them to become effective. There are a couple of reasons for this: 1  First, dystonia can involve a number of different muscles and it may take more than one trial by the injector to establish the right muscles to be injected.