Knowledge center. Chickenpox (Chicken Pox) , also known as Varicella, is a very contagious infection caused by the varicella zoster virus. In several parts of the world it is just known as varicella. Patients develop a blister-like rash, which first appears on the face and trunk, and then spreads throughout the body.
Etymology[edit] Latin. See mode. modus â(plural modi) (law, obsolete) The arrangement of, or mode of expressing, the terms of a contract or conveyance.
A modality is a type of electrical, thermal or mechanical energy that causes physiological changes. It is used to relieve pain, improve circulation, decrease swelling, reduce muscle spasm, and deliver medication in conjunction with other procedures. Typical types of modalities include electrical muscle stimulation, ultrasound, heat, ice, and traction. For treatment of localized inflammations, eg.