Well, if lupus runs in family, then multiple joint pain with rash can be due to lupus. Other possibilities are psoriatic arthritis, fibromyalgia, polymayalgia rheumatica and chronic fatigue syndrome. Gout, though typically affects the great toe, can cause multiple joint pain with rash. Hashimotos Thyroiditis is another possibility. Hayfever and rheumatoid arthritis too should also be ruled out. Crohn’s disease is another possibility.
Another possibility is reactive arthritis, which could have occurred in reaction to something—in this case rash. In this case you need to rule out the cause for the hives or urticaria. Urticaria is usually triggered by allergens, such as drugs, foods, insect bites, inhaled substances, in response to sunlight, cold, heat, stress, exercise, or a viral infection. Other common allergens are pollen, mold, dust, pet dander, or cosmetics. Food allergies like to gluten and alcohol too should be looked into.You may need to consult an allergy specialist.
The American College of Rheumatology (ACR) has identified 11 characteristics that should be present for diagnosis of SLE or lupus and it is important that at least 4 of the characteristics should be present for a confirmed diagnosis. This includes serositis (pleurisy or pericardiatis, since you had bronchial infection, ask your doctor to check for pleurisy or inflammation of lining of lung), mouth ulcer, low WBC or leucopenia/anemia (hemolytic)/thrombocytopenia/lymphopenia, arthritis, kidney involvement, high ANA, finding of Smith Antibody (Anti-Smith)/ dsDNA/ antiphospholipid antibodies (anticardiolipin immunoglobulin G [IgG] or immunoglobulin M [IgM] or lupus anticoagulant), neurological features like seizures and psychosis, discoid rash and malar rash. Do discuss this with your doctor and get yourself examined. Take care!
The medical advice given should not be considered a substitute for medical care provided by a doctor who can examine you. The advice may not be completely correct for you as the doctor cannot examine you and does not know your complete medical history. Hence this reply to your post should only be considered as a guiding line and you must consult your doctor at the earliest for your medical problem.
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