Can my sister accompany my mother

[bken]

My mother already has visitor visa, and she has some physical issues. can i apply for my sister to accompany her. my sister is a nurse and lives with my mother

 

[canuck78]

My mother already has visitor visa, and she has some physical issues. can i apply for my sister to accompany her. my sister is a nurse and lives with my mother

She can attempt to get her own TRV but no guarantee.