Good evening sir, recently I was under medication of homeopathy for gastric,acidity,dermatitis,sinusitis.the 3 months with mother tinchers were fine but all of a sudden i got eruptions on my neck and I went into depression. I realised that one of the medicine doses is causing the problem and I discontinued it.Then later I also realised that mostly I prefer vegetarian foods I think iam deficient of vitamin b12 as I realised the symptoms of the former were evident in me,like poor memory no concentration,mood variation,depression,hands and legs numbness,brain tingling sensation etc. Kindly suggest me the proper medication or good diet.