Continue calcirol sachets once a week for at least 8 weeks and then take it fortnightly for 3 months snd then take it once a month regularly.
There is no need for more injections of arachitol
For B12 ,it is better to give injection B12 for 10 days regularly.
After the injections,you can put her on oral remyelin.
Ask her to take oral calcium also.