DD2 has had what I assume is an ulcer on her throat for the past couple of weeks - I can see a white dot on the opening to her throat. It doesn't bother her all the time but sometimes when she's feeding she keeps pulling off as though something hurts, she'll then latch back on but pull off screaming again. I did think she was teething but her gums don't look red or sore. Is there anything I can do/give her to ease the pain? She's also been sleeping really badly compared to what she was before. She's 6 months and was born 7 weeks early.