I am considering trapezius Botox because of shoulder pain. Will it be effective?

 

My shoulders and neck tend to get stiff easily, and

My neck isn't in good condition. Maybe it's because I have a straight neck, but the pain in my shoulders is really severe.

In particular, the entire area from the back of the neck to the trapezius and shoulders is tight and always stiff, 365 days a year.

It’s not like my trapezius muscle itself is prominent, but on days when the pain is severe, it swells up really hard.

When the pain is really severe, it even spreads up to the headache, so I went to an orthopedic clinic and tried physical therapy and manual therapy... but perhaps because it has become chronic pain, it only gets better temporarily, and the muscle pain doesn't really go away.

I have a job where I spend a lot of time looking at a computer and phone, so my shoulders are tense all day, and I think that might be why they aren't healing well.

 

Then I found out about trapezius muscle Botox.
I originally thought it was mainly used for cosmetic purposes, like shaping the shoulder line.
But after looking it up, it seems like quite a few people find it suitable for relieving neck disc problems and shoulder pain, so I'm considering it.

How much does trapezius Botox actually help with shoulder pain...?

 

I guess I have to get hit a few times, not just once, right?

How it differs from cosmetic Botox

When the effect appears

I was scared and curious about whether getting trapezius Botox would cause side effects like weakness in the shoulders or heaviness in the arms.

But Botox isn't permanent, it's temporary, you know.
Then I'm also wondering how regularly I need to get it... I think I need to consider the cost as well.

If anyone has received Botox for pain relief, whether in the trapezius muscle or elsewhere, I am curious to know if it was really effective and how long the effects lasted.