Viral fever occurs when some tiny particles of virus enter in your body through direct or indirect contact. In this case normal body temperature increases. It not only affects infants, but also impacts adult due to weak immunity power. Immunity power becomes weak when the white blood cells fail to generate sufficient antibodies. Antibodies fight against dangerous foreign elements and kill them.
People with viral infection may have body pain, headache and rashes on skin. In case of viral fever or infection you can use home remedies if you have enough knowledge about it. Otherwise, modern medicines are capable to treat viral infection.
Source: https://www.inguin.in/blog/what-is-viral-fever-its-signs-symptoms-causes-prevention-and-treatment/