Help for my daughter

My daughter aged 49 was put into remission in January 2022 she had stage 3 cervical cancer, she had chemo, radiotherapy and brachytherapy, she also had problems with her abdomen lymph nodes, one is still big and giving her problems, her legs and ankles swell up every day, she called her cancer team in January, they said they would make an appointment for her to see someone in the lymphnode department, but so far March 7th she has heard nothing, she works full time teaching in a school so on her feet every day all day, how long does it roughly take to get an appointment, she has heard nothing from anyone about an appointment and I am getting very worried about her health even though she is in remission. Many thanks for any help or advice you can give me, Vee x