(a) What are analgesics?
(b) How do camphor and menthol relieve pain?
(a) Analgesics are medicines that are used to relieve pain. They are also known as painkillers or pain relievers.
(b) It works by causing the skin to feel cool and then warm. These feelings on the skin distract you from feeling the ache or pain. Camphor also helps to relieve itching.