I've been on Anastrozole for 7 months. I started having numbness on my right ring finger about a month ago. It's not terrible but I feel it. It's worst in the mornings: when I close my fingers around a bar of soap for example it hurts. It becomes gradually fine during the day. Last week I went to see an occupational therapist. She placed a splint on it and told me to wear it all the time (except showers etc.) It's been a week and I don't think it's quite working.
What do collagen supplements do to help?

On a separate note, sometimes I think when people read a side effect before they have it, they kind of start to expect to have those and it becomes a self fulfilled prophecy. I didn't have this, and somehow I ended up reading a number of posts where people complained about trigger finger. Lo and behold, after a week or so the numbness started!

So, perhaps look at the title and if it mentions some side effect you don't have, don't click on it to read it :))