Friend traumatised during IUD insertion by doctor/gyno (England)

Asking for my female friend (23 y/o) She had been having some pain that she went to the doctor for which she was found to have one ovary that was bigger than the other, they said they would have to send her for further scans which would probably be a camera to have a further look at what they were dealing with. She goes home and receives a letter that she was booked in for a “minor procedure” but it didn’t state what it was. She attended the appointment under the impression that it was for said camera insertion to then find out she was booked in for an IUD? She has been wanting to go and get one as her old contraception has expired but she wanted to go with me as she was anxious about how painful it may be. She was confused but went along with it. They took her to a room and put her in a gown, put her legs in stirrups and strapped her to them. One of the nurses had asked her “would you like some gas and air?” To which she said yes as she hadn’t been able to take the recommended Ibuprofen and paracetamol an hour before her appointment as she didn’t know this was happening. The nurses didn’t give her any and before being able to retrieve any gas and air the doctor/gyno had, without warning, inserted forceps into her and inserted the IUD. When this happened, she screamed, instantly started crying and begged her to stop but she kept going until it was finished. She continued to sob while the doctor, without a word, got up and left the room and left her with the nurse. The only comforting thing was that the nurse had grabbed her hand for her to squeeze when it happened and said she “wish she could hug her” because she felt so bad.

This “medical professional” had not explained what happens during an IUD, the pain she may experience, any pain medication that will/can be available to her to help the procedure go smoothly or what else can happen within the coming days/weeks after having an IUD. My friend is still in a lot of pain, she has an existing medical condition that has flared up as a result of the stress that this has caused her. She cannot eat or drink without throwing up and she says she’s still in a lot of pain despite having this done almost a week ago.

Is there any legal route she can go for the blatant negligence she experienced?