For patients without health insurance, plantar wart removal typically costs less than $50 for over-the-counter salicylic acid treatment to less than $200 for prescription cream and less than $1,000 for laser treatment or cryotherapy. In rare cases in which surgery is required, costs could increase to $8,000 or more.
If a large amount of arsenic is swallowed by humans, in a form that is readily absorbed, it can cause rapid poisoning and death. The gut, the heart and the nervous system are affected.
Some scientists think that arsenic may be an essential element in our diet in very, very low doses. In small doses it is toxic and a suspected carcinogen. Once inside the body it bonds to atoms in the hair, so analysing hair samples can show whether someone has been exposed to arsenic.