My 20mo dd used to be a good sleeper. A week ago we moved her from Cot to a Bed and she was great with it. On monday her doctor prescribed her with Pennicilian for a cough. Since then she has been awful during the night. Waking at 5am first night, 4am the second night and 2.30 this morning. She wakes and gets out of bed and is v. upset and uncontrollably crying. It takes up to 2 hours to calm her down. Could this be down to a) pennicilian b) bad dreams c) something else. Please help as don't know what to do.