DD (8 months) finally had one of her top incisors begin to emerge on Friday after weeks of drooling and gnawing. However, after making a brief appearance for a day or so it has now gone away again. This now seems to result in her being in quite a bit of pain - she's not drooling, gnawing or red cheeked any more - instead she's quite upset by anything getting near her mouth.
Is it normal for a tooth to disappear like this? Should we just help her through the pain until it re-emerges on its own course?