<prompt> Erethism occur in:HgAsPbCu  <response>: A i.e. Hg Mercury Chronic mercury Hg poisoning presents with excessive salivationQ, diphtheria like membranous colitis dysentery and membranous glomerulonephritis, coarse tremors, insomnia, anorexia, PCT necrosisQ, Pink disease, erethism i.e. disturbed personality in form of excrssive shyness irritability and mercuria lentis i.e. brown spot on anterior capsule of lensQ. 