Does lupus cause itchy skin?

Written by Zhang Lin
Rheumatology and Immunology Nephrology
Updated on September 25, 2024
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The rash in patients with lupus erythematosus is generally not noticeably itchy. In patients with lupus erythematosus, the characteristic changes include a butterfly-shaped rash on the bridge of the nose and cheeks. The skin lesions of lupus erythematosus include photosensitivity, hair loss, erythema on the palms and soles and around the nails, discoid lupus, nodular erythematosus, seborrheic dermatitis, livedo reticularis, and Raynaud's phenomenon, among others. Generally, there is no noticeable itching. If significant itching occurs, it suggests an allergy. Itchy rash after immunosuppressive treatment should be monitored for fungal infections. Lupus patients receiving steroid and immunosuppressive therapy, if experiencing unexplained localized skin burning, may be showing early signs of herpes zoster and should seek prompt medical attention at a hospital.

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Written by Zhang Lin
Rheumatology and Immunology Nephrology
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What foods are good for lupus erythematosus?

The diet for patients with lupus erythematosus varies from person to person. Generally, the ideal food for lupus patients should have the following characteristics: an appropriate amount of high-quality protein, low fat, low salt, low sugar, and rich in vitamins and calcium. Since many lupus patients often have significant kidney damage, proteins are frequently lost in large amounts through the urine, causing hypoalbuminemia and edema. The supplementation of protein should primarily consist of high-quality animal proteins, such as milk, eggs, and lean meats. However, protein intake should also be appropriate and not excessive. Excessive intake can not only lead to incomplete absorption by the patient, increasing the burden on the gastrointestinal tract, but also increase the excretion of nitrogenous compounds in the body, further burdening the kidneys. Lupus patients should avoid or minimize consumption of foods that can enhance photosensitivity, such as figs, rapeseed, cilantro, and celery. If consumed, they should avoid sun exposure afterwards. Mushrooms, smoked foods, and certain food dyes can also trigger lupus and should be avoided or minimized in the diet.

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Written by Liu Li Ning
Rheumatology
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What should I do about lupus erythematosus?

Lupus erythematosus requires early and formal treatment to stabilize the condition. For mild cutaneous lupus erythematosus, topical immunosuppressants, such as tacrolimus ointment, and immunomodulators, such as hydroxychloroquine, can be used. Low-dose corticosteroids may be necessary for combination therapy. Systemic lupus erythematosus generally requires corticosteroids as the basis of treatment, combined with one or several immunosuppressants to effectively control the disease. Systemic lupus erythematosus often involves multiple organs, with the kidneys, hematological system, and lungs being the most common. Therefore, it is necessary to use corticosteroids in combination with immunosuppressants to control the progression of the disease, as using only immunomodulators is often insufficient.

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Written by Zhang Lin
Rheumatology and Immunology Nephrology
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Lupus erythematosus taking steroids side effects

Patients with lupus mainly use steroid treatment, but steroids have many side effects during their application, such as increased blood pressure, inducing or exacerbating infections, inducing or aggravating peptic ulcers, necrosis of the femoral head, osteoporosis and vertebral compressive fractures, delaying wound healing in injured patients, increasing blood sugar, etc. Additionally, steroids can cause nervous sensitivity, agitation, insomnia, emotional changes, and even apparent mental symptoms, inducing seizures such as epilepsy. Some patients may also have suicidal tendencies. Therefore, it is necessary to use medication rationally under the guidance of a doctor, reduce the dosage timely, and effectively prevent and treat to minimize the occurrence of side effects. Taking steroids can also lead to weight gain; hair loss is relatively less common. The occurrence of side effects varies among individuals and should be tailored to the patient's specific condition.

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Written by Zhang Lin
Rheumatology and Immunology Nephrology
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Can lupus be inherited?

Lupus erythematosus is not a genetic disease, but it is a disease with a genetic predisposition. This means that genetic diseases refer to monogenic diseases, including albinism, color blindness, etc., which are determined by a pair of alleles. However, lupus erythematosus is a disease with a genetic predisposition, determined by multiple genes. Although lupus erythematosus is not a genetic disease, if your parents have lupus erythematosus, the chance of the next generation developing lupus erythematosus is about 1% to 16%. This relationship is especially significant between mothers and daughters, and among sisters. Genetic factors account for approximately 20% of the importance in the development of lupus erythematosus. Only the combination of genetic factors and environmental factors together can lead to the occurrence of lupus erythematosus.

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Written by Zhang Lin
Rheumatology and Immunology Nephrology
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Will the rash of lupus fade away?

Patients with lupus often experience recurrent, stubborn skin lesions on their hands or face, and some may even develop ulceration, atrophy, or scarring on top of the existing erythema. Most lupus patients exhibit erythema, centered around the bridge of the nose and appearing on the cheeks. The lesions are disc-like on both sides with generally clear boundaries, either flat or slightly raised, and are categorized as exudative inflammation. Depending on the severity of the inflammation, the erythema can range from light red, bright red to purple-red. In severe cases, localized edema resembling erysipelas may occur, and scaling and hyperpigmentation may appear as the inflammation subsides. Facial rashes generally resolve, and most rashes do not leave marks after resolution. If hyperpigmentation remains after the erythema has resolved, it suggests a good prognosis. However, erythema in other areas, such as acral erythema and reticular cyanosis, may last for varying durations depending on the patient's individual condition.