two. Muscle Weak spot Botox injections work by blocking nerve alerts and weakening muscles. You may detect a feeling of weakness during the muscles encompassing your injection web-site. Porta M. A comparative trial of botulinum toxin type A and methylprednisolone for the treatment of myofascial ache syndrome and discomfort https://jetonlinepharma.us/product-category/botulinum-toxins/