Will urticaria kill me if i don't get treatment?

Will drive you crazy: Urticaria is more uncomfortable than life threatening. It can reach extremes, predisposing to skin infection and severe fluid loss with dehydration.

No: However, that is as long as the problem is confined to hives. If you have a severe allergy to peanut for example, there is a strong chance that if you are having hives now, you are at risk for worse reactions including death. Chronic idiopathic hives (non-allergy related) do not result in worse reactions like death.