Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain the symptoms of itching and pain on face seems to be most probably due to
allergic reaction and as it occurs on bed there are possibilities like:
1.Either you are eating any specific food at night time that is causing allergic reaction, while can also be due to any medication that you are taking at night..
2.It can also be due to any night cream that is causing
allergy.
3.While another cause can mites on your bed..
Consult an Allergist and get evaluated..
You can be advised allergic tests like
RAST TEST,
Patch test, Prick test, Food Challenge test to confirm the diagnosis and will be treated accordingly...
Eliminating the cause will prevent the symptoms..
As of now take anti allergics like Levocetrizine to relieve the symptoms..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.