Isolated and dispersed pin-prick spots may first appear, so it is important to search the whole body for small petechiae, or red and purple spots. If you, or someone you know, appears to be suffering from a rash of this kind, please seek medical help immediately. As part of the MRF helpline team, I have had a parent describe a rapidly evolving rash as “like someone using a biro to draw all over the skin”. A purpuric rash looks more like bruising, showing up as reddish-purple areas on the skin.Ī rapidly evolving petechial or purpuric ‘rash’ is a marker of very severe disease.A petechial rash looks like pin-prick red or purple spots on the skin, and can resemble flea bites.The rate of progression can also vary greatly. However, meningococcal rashes can be extremely diverse, and look different on different skin types. This rash can be one of the clearest and most specific signs of meningococcal meningitis and septicaemia to recognise – hence why you have probably heard of it. As the blood vessels get damaged, blood starts to ‘leak’ into the surrounding tissue, often causing what looks like a ‘rash’ to appear on the skin. As this happens, the bacteria rapidly multiply and produce toxins which travel around the body causing damage to blood vessels and organs. Once the bacteria have invaded the back of the nose and throat, they travel through the bloodstream. Sadly we don’t yet understand why some people get ill from a bacteria that is harmless to most of us. These bacteria can be very common and are mostly harmless, but in some people this bacteria invade the body via the back of the nose and throat, causing severe illness and even death. Meningococcal bacteria in particular are the most common cause of the meningitis rash. Meningitis and septicaemia can be caused by many different bugs, including viruses and fungi, but most cases of severe meningitis and septicaemia are caused by bacteria. Information and Support Officer Katherine Carter explains more. However, the rash does not always appear in cases of meningitis, and the word ‘rash’ itself may be misleading. Erythema toxicum.When we think of meningitis, we may think of the so-called ‘meningitis rash’ – a red or purple marking on the body which remains present when pressed with a glass. Signs and Symptoms of Untreated Lyme Disease. Centers for Disease Control and Prevention.American Osteopathic College of Dermatology.Diagnosis, Treatment, and Prognosis of Erythema Migrans and Lyme Arthritis. ![]() Erythema Nodosum: A Sign of Systemic Disease. Palmar and plantar erythema, pulmonary fibrosis and the anti-synthetase syndrome. What is the ‘true’ function of skin? Retrieved from Evaluation of Erythema Severity in Dermatoscopic Images of Canine Skin: Erythema Index Assessment and Image Sampling Reliablity. Brucell as an unexpected cause of erythema nodosum. Our writers are members of professional associations, including American Medical Writers Association, American Bar Association, The Alliance of Professional Health Advocates and International Society for Medical Publication Professionals. The information on has been medically and legally reviewed by more than 30 expert contributors, including doctors, pharmacists, lawyers, patient advocates and other health care professionals. This means the high-quality information we provide comes from credible sources, such as peer-reviewed medical journals and expert interviews. is HONCode (Health On the Net Foundation) certified. Our team includes experienced medical writers, award-winning journalists, researchers and certified medical and legal experts. We’ve also connected thousands of people injured by drugs and medical devices with top-ranked national law firms to take action against negligent corporations. has provided reliable, trusted information about medications, medical devices and general health since 2008.
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