Analysis of illness: Suggestion: It can be supplemented appropriately, but not too much. Excessive use of vitamin C can cause nausea, vomiting, diarrhea, abdominal pain, rash and other symptoms; Moreover, it will lead to the increase of oxalic acid, the metabolite of vitamin C, which will lead to urinary calculi; Excessive vitamin C can lead to deep vein thrombosis, intravascular hemolysis or coagulation. It can also destroy lymphocytes and hinder the phagocytosis of white blood cells, but it will affect the human immune system. If there is any problem, it is recommended to seek medical advice in time. If you have any questions, please leave a message again.