Hi,
How are you? It is good that you were able to see your dermatologist and allergologist. If the medications are not working, inform your doctor for proper management. A change of medication or change in dosage may be indicated. Also, other possible causes such as anemia, liver or kidney diseases, and neuropathies which may present with generalized itching may also be ruled out. Take care and do keep us posted.
I actually had this aswell along with the body movements, the doctor told me it could have been scabies, but he could not find an, I went on the cream for the month, my rash is gone, but it took three months instead of the total month he said it would take, I also moved house, and found I had an allergy to dust mite. but my mother does not have that since she is a clean freak, I still get rashes,.. My rashes had turned into all over scabs, and my hands ankles legs and tummy area. I was pretty stressed out at the time also, but all tha tyou have said has really reminded me of it, jsut use the scabies cream if not already. you can catch them from old clothes, lounges so forth. also try and relieve stress it could be that. take a half hour or hour each day to dimissish that being the cause. I am only 19 as well, and was embarressed of scabby ness all over my body