Are there any side effects of frown line Botox?

I tend to get wrinkles between my eyebrows easily, so I'm thinking of getting Botox for that area.

If your eyes feel heavy after getting Botox between your eyebrows, or

There are occasionally people who say it is a bit uncomfortable to open their eyes.

There may be individual differences, though

Are there any potential inconveniences after getting Botox between the eyebrows?