Non-stop Itching / Skin Crawling, No Rash in Related Disorders & Celiac Research Posted June 8, 2018 · Report to Admin UPDATE: I decided to try eliminating nitrates in August 2017 after advice from a friend. Within days my daughter was no longer complaining of constantly itching all over. Despite being off nitrates, her itching symptoms returned two months later. I began to suspect that the daily ½ dose of Miralax every evening was to blame. She has been on Miralax for nearly 2 years per the orders of her gastroenterologist, with no sign of her body improving enough to eliminate without it. In March, we decided to discontinue cyproheptadine, which her gastroenterologist had prescribed to increase her appetite. Since it constipation is one of its side effects, it seemed to be aggravating the cycle of constipation, suppressed appetite, and inability to get off the Miralax. With the cyproheptadine gone, we decided to discontinue Miralax and switch to a daily dose of magnesium instead. It has been a difficult transition, with my daughter often not pooping for up to 4 days, only to finally eliminate by diarrhea. However, the itching and “skin crawling” symptoms are completely gone. In May I cooked a meal with nitrates to test whether they were safe to reintroduce, and she began complaining of itching within hours, so that will stay out of her diet. One week later, I decided to test her reaction to Miralax and gave her a ½ dose in the afternoon. She began complaining of itching by bedtime. We have deduced that Miralax has likely been the primary cause of her itching symptoms for over a year, and will not put her back on it. The challenge has been to find the correct dose of daily magnesium to keep her regular without diarrhea, but with our naturopath's help, it appears we are finally on the right track to a solution. We also decided to have her genetically tested for celiac, and the results came back negative. The specialist I spoke to said that it doesn't necessarily rule out celiac, however, because geneticists are constantly making new discoveries for genetic markers that were not previously known. She recommends retesting several years down the road. Thank you all for your help and advice.