Is self-administration of Maunza okay in terms of pain?

I have a question regarding self-administration of Maunzaro.

Since it involves administering the injection directly, I am concerned about the level of pain or the sensation of being pricked. What do you think?

And regarding pain or stiffness when administering it normally

I would also like to ask how much you feel about it.

If you have experienced it firsthand

Please feel free to share your experience with me.