Routes of entry for accidental poisoning are the same as for allergic reactions. What route is the most common route of entry for a poisoning?

Ingestion is the number one cause of accidental poisoning mostly secondary to children eating or drinking stuff they shouldn't. Smaller children explore with their mouths, they don’t have enough dexterity or experience with much other than eating or placing things in their mouths, hence drinking or eating things which could be hazardous to them.