Hello, I have reviewed your query in detail and here is my advice. Localized use of steroid nasal spray will not aggravate GERD symptoms. Scleroderma is commonly associated with worsening symptoms of GERD. GERD is managed best with a combination of lifestyle changes and medications. Lifestyle changes that can be tried include: - Avoid spicy, fatty, and fried foods, as well as chocolates and carbonated drinks. - Avoid citrus-containing foods like tomatoes, oranges, and fruit juices. - Eat multiple small portions of food rather than three large meals. - Limiting caffeine intake. - Have your dinner at least two hours before bedtime, so that your stomach is light before you go to bed. - Elevate the head end of the bed by placing wooden blocks under the bedpost. Using extra pillows will not provide relief. - Avoid cigarette smoking and alcohol consumption. - Maintain a healthy weight. You can also continue taking Omeprazole. If these measures do not seem to help. medications like Domperidone to improve esophageal motility should be considered to be added to the treatment regimen. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Lekshmi Rita Venugopal, General & Family Physician