In Siddha medicine, fever is referred to as "pirappu" or "vali." Siddha medicine offers various herbal remedies to treat fever, depending on the underlying cause and symptoms. Here are some commonly used Siddha medicines for fever:

Remember, while Siddha medicine has been used traditionally for ages, it's essential to consult a qualified Siddha practitioner or a healthcare professional for proper diagnosis and treatment, especially if the fever persists or worsens. Additionally, modern medical advice should not be disregarded, and Siddha remedies should be used as complementary approaches under medical supervision.