Can allergic purpura be cured?

Written by Li Jing
Rheumatology
Updated on September 29, 2024
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Allergic purpura mainly occurs in adolescents and children, often in the spring and autumn seasons, and is typically related to bacterial infections, viral infections, and allergies to medications and foods. The most common clinical symptoms include bruises on both lower limbs, bleeding, black stools, joint pain, and abdominal pain. Upon the appearance of bruises on the lower limbs, it is recommended to complete routine blood tests, erythrocyte sedimentation rate, and autoantibody tests to rule out other autoimmune diseases causing skin bruises. During the acute phase, it is necessary to rest in bed, drink plenty of water, and eat a light diet. If there are only simple skin bruises, these may resolve after rest. However, if joint pain, bloody stools, and black stools occur, formal and active treatment is required, as these symptoms will not resolve on their own. Additionally, the presence of blood or protein in urine suggests kidney involvement, indicating that the condition has worsened.

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Written by Yang Ya Meng
Rheumatology
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Mild symptoms of allergic purpura

Allergic purpura mainly includes three pathological types. The symptoms of the mild type mainly involve changes in the skin, primarily purpura-like rashes around the lower legs and ankle joints. If there are only skin lesions, it is considered a very mild case of allergic purpura. Additionally, more severe cases may involve kidney impairment, such as the presence of protein in the urine. Some patients primarily experience joint pain, also known as the arthritic type. Another group of patients presents mainly with sudden abdominal pain, primarily known as the abdominal type. Therefore, mild symptoms of allergic purpura might just be typical rashes. As long as there is no involvement of the visceral system, it is considered relatively mild.

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Written by Li Jing
Rheumatology
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Are there many children with allergic purpura?

Firstly, allergic purpura is commonly found in adolescents and children, with children being the most commonly affected, particularly between the ages of 8 to 15. It typically occurs during the spring and autumn seasons. The most common clinical manifestations are bleeding spots on the lower limbs, hematuria, black stools, and joint pain, which are the most typical clinical presentations. If there are only bleeding spots on the skin, no special treatment is required at this time; rest in bed is necessary, and these bruises can be absorbed. Once the kidneys are involved, it indicates a relatively severe condition, and at this time, active and standard treatment is necessary, including the need to improve routine urine and kidney function indicators. If protein quantification is relatively high, then glucocorticoids are needed, combined with anti-allergic medication. (Medication should be taken under the guidance of a doctor.)

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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.

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Written by Yang Ya Meng
Rheumatology
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What should I do if allergic purpura causes vomiting?

Patients with allergic purpura who experience symptoms of vomiting need to be highly vigilant to determine if it is the gastrointestinal type of allergic purpura. In addition to observing the vomiting, we also need to check for symptoms such as abdominal pain and diarrhea in the patient. Regarding treatment, we need to consider the use of corticosteroids. If the patient’s condition allows, immunosuppressants might also be needed. Dietary considerations are also very important; first, it is essential to maintain a light, liquid diet, avoid spicy or tough foods to manage the vomiting symptoms associated with allergic purpura. (The use of medications should be under the guidance of a professional doctor.)

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Written by Li Jing
Rheumatology
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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.