###Human: Can folic acid supplements be started after completing chemotherapy? ###Assistant: Hello. The folic acid tablets that you had taken for a month helped to raise your folate levels from 4 to 6. The high level of vitamin B12 can only be explained if you were given a single megadose of vitamin as an intramuscular injection during your chemotherapy. Folate levels of 6 are still low and are responsible for angular stomatitis and sore tongue. For more information consult a hematologist online -->