Post Date December, 02 2023
When it comes to allergic dermatitis, everyone is very familiar with it, which is the red spots on the skin! So do you know that these red dots may be allergic purpura?
Allergic purpura is a type of allergic vasculitis that invades small arteries and capillaries of the skin and other organs, often accompanied by abdominal pain, joint pain, and kidney damage, but with no reduction in platelets.
Pathogenic factors of allergic purpura
1. Infection
This is also the most common cause in clinical practice, such as bacteria, viruses, or parasites. Streptococcus hemolyticus is a common bacterium, and other bacteria such as tuberculosis, pneumococcus, and typhoid can all cause the disease. Common viral infections include chickenpox, measles, influenza, mumps, etc. Parasitic infections are most common with roundworms.
2. Dietary factors
There are mainly fish, shrimp, milk, eggs, crabs, chicken, lamb, etc., so patients should stay away from these allergens.
3. Drug factors
Common drugs include penicillin, streptomycin, chloramphenicol, erythromycin, sulfonamides, antipyretic and analgesic drugs such as aspirin, and gold, mercury, arsenic, bismuth preparations.
4. Other factors
For example, pollen inhalation, insect bites, cold stimulation, trauma, etc. may also trigger allergic purpura.
Purpura and Purpura Nephritis
Allergic purpura nephritis is one of the most common complications of allergic purpura, usually occurring one month after the appearance of skin purpura. Therefore, we need to improve our understanding of the disease after the illness in order to accelerate physical recovery and prevent recurrence.
1. It is best for patients with allergic purpura to have their urine checked once a week from the early stages of skin onset to two months, in order to promptly detect kidney lesions.
2. It should be avoided as much as possible to use corticosteroid drugs such as dexamethasone and prednisone for a long or short period of time and in large doses, because although corticosteroid drugs can quickly improve or disappear the condition, stopping the medication can easily cause the condition to rebound and worsen.
3. Side effects of medication should be avoided. If given a large dose of glucocorticoids for a long time, it can cause complications such as obesity, hirsutism, acne, elevated blood sugar, hypertension, edema, decreased blood potassium, menstrual disorders, osteoporosis, aseptic bone necrosis, digestive ulcers, and can also cause certain damage to the kidneys.
4. Patients with allergic purpura nephritis should be given a fluid diet free of animal protein and residue. In severe cases, fasting is recommended. After treatment, the animal protein diet can be restored one month after the purpura disappears.
5. Patients with allergic purpura nephritis should not receive various preventive vaccines until their condition is cured. Vaccination should only be carried out after 3-6 months of recovery, otherwise it may lead to a recurrence of the disease.
