Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern...
As per your complain and presentation of symptoms your daughter is suffering from Viral infection known as HERPATIC
GINGIVOSTOMATITIS caused by
Herpes Virus 1 [HSV 1] Infection nad it leads to inflammation in mouth along with eruption of cold sores or blisters..
You should immediately consult a Paediatrician and get her evaluated and along with the medicines she is being given the Paediatrician may also start a course of
antiviral oral and topical medications like
Acyclovir therapy..
As she is not eating and drinking intra-venous fluids may be given..
You can do cool packs over her gums and the
palate for relief from inflammation and pain..
Try to divert her attention and feed her with cool and bland foods..
Give her sufficient rest..
Maintain a good oral hygeine..
Hope this information helps..
Thanks and regards..
Dr.Honey Nandwani Arora..