Health director-general Dr Noor Hisham Abdullah said pollen from the weed contained chemicals known as parthenin, hymenin and ambrosin which could be harmful to health.
“However, not everybody who is exposed to it may get allergic reaction. Some people have the allergy symptoms when exposed to it continuously and repeatedly.
“The symptoms of allergy reaction include skin rash, skin peeling, itching of the skin, swelling of the eyes, allergic rhinitis and disruption to the respiratory system, like cold and asthma,” he said in a statement here today.
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