Unsaturated pyrrolizidine alkaloids are hepatotoxic, that is, damaging to the liver. PAs also cause hepatic veno-occlusive disease and liver cancer. PAs are tumorigenic. Disease associated with consumption of PAs is known as pyrrolizidine alkaloidosis.
The venom is what causes the symptoms. The main symptoms are pain, itching, swelling and redness at the sting site. Severe pain or burning at the site lasts 1 to 2 hours. Itching often follows the pain. Swelling. The bee sting may swell for 48 hours after the sting. The swelling can be small or large.
Your Privacy Rights. Canadian Customers. Whether you've been stung by a honeybee, hornet, wasp, or yellow jacket (or bitten by a fire ant, which belongs to the same venomous class of insects), in most cases the symptoms are pretty much the same: pain, redness, swelling, and itching at the site.ee stings smart because the bee has injected venom into your skin. Only females sting, says insect expert May R. Berenbaum, PhD, head of the Department of Entomology at the University of Illinois at Urbana-Champaign.