Burning sensation. College in few days!

I have b12 and d3 deficiency I finished my d3 course with 1 month sachet and still have been taking extra every week 1 sachet started from yesterday and b12 injections I took every alternative days 5 and weekly injection only last dose is left which I will be taking on Thursday the pain in my feet is gone but the burning sensation in toes doesn't give me energy to work in day at home or sleep at night every night I wake up and need to cool my feet with water it makes me restless and uncomfortable every day the burning sensation doesn't stop at all what should I do about it even painkiller injection didn't work last time It is really very much uncomfortable how will manage later if it won't stop I have to go to college in few days