I would certainly check with the physician who manages your Hashimoto disease, but there is no contraindication to using botox/hyaluronic acid fillers in patient's with Hashimoto disease. From my own experience, however, I would avoid fillers in the tear troughs and botox for the horizontal...
That is a very good question. All of the neurotoxins take time to work and the results are not instant. You need to give the injections at least one full week. The duration of treatment is approximately 3 months.
There is no problem in treating someone with a thyroid condition like Hashimoto's with Botox. Rest assured that both Botox and fillers like Juvederm or Restylane would all be safe as long as your injector is highly trained and experienced such as a dermatologist or plastic surgeon. ~ Dr....