Some of the components which are used as a adjuvant and preservative in the vaccine can cause allergy to many patients if you could share your complete concern what do you mean brufin type salt then It could be very helpful in guiding you further.
You have not mentioned anything like the age of your mother any comorbid illness she shopping from
diabetes hypertension
thyroid issues or any other problem for which she is taking medication for very long period of time kindly update me above answer for guiding you for the that
Next Steps
Feel free to consult with detail history for further guidance and prescription