Yes...burning feet can be due to deficiency of these vitamins along with take vit C,E supplements
Treatment of a
vitamin B12 and D deficiency includes taking such vitamins supplements usually at a higher dosage for a period of time .
then repeating the blood investigations to assess if levels have reached a normal range.
In her case;vitamin B12 deficiencies may need to be treated with intramuscular injections of vitamin B12.and vit D3 supplements..