Had Botox 10 Days Ago. Still No Paralysis. Did Something Go Wrong? Does It Just Take Longer?

Based on the photo you've provided, your hair covers up your forehead where you state you've had treatment. I would follow up with your provider for better assessment and to determine if you just need more product.

Typically by 10 days some effect should be noticeable, so it's likely the dosage was insufficient to treat the desired area.  Most physicians will certainly want you to follow up and let them know if the treatment was not to your satisfaction, and I'm sure your doctor is no different.