Hi, I feel that you suffer from allergic urticaria. Consult the dermatologist for the perfect diagnosis and proper treatment. There may be some allergens responsible for the disease. Sinusitis is also due to allergy. Trial and error method may be done to find out allergen. Those may be some dietary factors like dairy products, seafood eggs, cows milk, soy protein, banana, fermented food or some contactants like perfume, grass, pollens, wool, dust, soap, insects, etc. Tab. Fexofenadine thrice a day will alleviate your ailments. Apply soothing lotion like calamine lotion. If needed, the oral steroid in a tapering dose may be taken after visiting your doctor. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr Ilyas Patel, Dermatologist