Is allergic purpura contagious?

Written by Liu Li Ning
Rheumatology
Updated on September 14, 2024
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Allergic purpura is not a contagious disease; it is an autoimmune disorder, and therefore it is not transmissible. This condition is a self-limiting disease commonly found in adolescents and children. It mainly comes in four types: simple, renal, abdominal, and articular. Common symptoms include purpura on the limbs and body, and it may also involve abdominal pain, joint pain, and hematuria among other organ impairments. During the acute phase, bed rest is required. Sometimes, when the kidneys are affected, corticosteroids are necessary for timely treatment. If there is joint swelling and pain, nonsteroidal anti-inflammatory drugs can be used to alleviate pain, and antispasmodic analgesics can be used for abdominal pain.

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Written by Pan Wu Shan
Nephrology
1min 6sec home-news-image

Is allergic purpura nephritis easy to treat?

Allergic purpura nephritis is essentially a kidney complication caused by allergic purpura. The main symptoms are that the patient first presents with scattered purple spots on the lower limbs, known as allergic purpura. Subsequently, routine urine tests reveal hematuria or proteinuria, allowing for a diagnosis of allergic purpura nephritis. It cannot be completely cured. Currently, treatment first requires complete quantification of urine protein and a renal biopsy to confirm whether it is allergic purpura nephritis and its severity. Generally, it involves the use of steroids. Typical treatment involves firstly avoiding allergens, so any substances that cause allergies should not be contacted to prevent triggering allergic purpura, and thus prevent the recurrence of purpura nephritis. Additionally, it involves adhering to a low-salt, low-fat diet, and avoiding catching colds or staying up late.

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Written by Li Jing
Rheumatology
1min 13sec home-news-image

Precautions for Allergic Purpura

Allergic purpura is a common allergic disorder, also known as vasculitis, and occurs more frequently in adolescent males. Adults can also be affected, but it is less common, and the majority of cases are due to infections, such as bacterial, viral, or parasitic infections. Food or drug allergies are also part of the causes of allergic purpura. For adolescents who develop allergic purpura, infections should be considered first, followed by allergies. It's important to maintain a light diet, drink plenty of water, wear a mask when going out to prevent upper respiratory infections, and control the intake of high-protein foods such as fish, shrimp, eggs, milk, and lean meat. As for fruits, including mangoes, some people can be triggered to have allergic purpura, especially fruits they have not been exposed to before; it's best to minimize contact with unfamiliar fruits to avoid inducing an allergic purpura attack.

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Written by Zhang Peng
General Surgery
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Is allergic purpura with abdominal pain easy to treat?

Allergic purpura with abdominal pain, also known as abdominal allergic purpura, involves gastrointestinal symptoms associated with allergic purpura, primarily characterized by episodic severe abdominal pain, usually around the navel or lower abdomen, and may sometimes be accompanied by vomiting. Treatment typically involves bed rest, actively identifying the cause, controlling infections, and supplementing relevant vitamins. It's also important to check for any symptoms of gastrointestinal bleeding. If there are signs of gastrointestinal bleeding, strict dietary management is necessary, blood transfusions may be required when needed, and the healing of the gastrointestinal tract must be monitored. Medications to suppress acid or protect the gastric mucosa could be considered. Generally, the prognosis for allergic purpura is favorable, though very few severe cases may experience gastrointestinal complications such as bleeding, intussusception, or even necrosis. Although the prognosis is generally good, relapse is common. (Please use medications under the guidance of a professional physician and do not self-medicate.)

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Written by Li Jing
Rheumatology
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What can people with allergic purpura eat?

Firstly, allergic purpura commonly occurs in adolescents and children, mainly between the ages of 5 to 14, and is frequent during the spring and autumn seasons. The most common causes of allergic purpura are infections, drug and food allergies, with infections being the most prevalent cause, such as bacterial, viral, and parasitic infections. Allergic purpura cannot be cured and often relapses. During the acute phase, it is primarily recommended to rest in bed, and to eat a light diet. It is advisable to consume fresh fruits and vegetables, such as oranges, grapes, grapefruits, and kiwis, which are rich in vitamin C, as well as various green leafy vegetables. These foods, rich in vitamin C, are beneficial for recovery and good for the body. Additionally, foods like seafood and mangoes, as well as previously untried fruits and foods, are not recommended during this phase to avoid triggering allergic reactions or worsening the condition.

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Written by Li Liu Sheng
Nephrology
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Is allergic purpura nephritis contagious?

Kidney damage caused by allergic purpura is called allergic purpuric nephritis. The main mechanism of allergic purpuric nephritis is the deposition of immune complexes in the kidneys, causing hematuria, proteinuria, edema, and hypertension. Severe cases of purpuric nephritis may also lead to renal failure. Additionally, patients with allergic purpuric nephritis exhibit systemic symptoms such as skin purpura, abdominal pain, joint pain, and melena. Allergic purpuric nephritis usually occurs in children, and it is not contagious. Unlike viral hepatitis, tuberculosis, and dysentery, it does not spread through respiratory, digestive, or blood pathways.