Oleander (Nerium oleander) is a highly toxic plant commonly found in Nepal. The plant's leaves and flowers contain a powerful toxin called oleandrin, which can cause serious health problems if ingested or even handled improperly.
Tourists visiting areas with oleander should be cautious and avoid any direct contact with the plant. Oleander poisoning can occur from ingesting the plant or its parts, as well as from inhaling smoke from burning oleander. Symptoms of oleander poisoning include nausea, vomiting, abdominal pain, irregular heartbeat, seizures, and in severe cases, death. If you suspect you have been exposed to oleander, seek medical attention immediately.
It is also important to avoid using oleander in traditional or herbal remedies, as the plant's toxicity can be dangerous and potentially fatal.