[Concern] My whole body is itchy

At first, I had a rash on my forearm and applied skin ointment, but now my whole body is itchy.

I went to the hospital and had an allergy test, but they said there were no particular allergies.

I have been using the oral and topical medications prescribed by the hospital for several months, but there has been no noticeable improvement.

If I scratch my forearm, leg, or chest, it becomes red and swollen, and I get nail marks.

Eventually, no matter how itchy it is, if you endure it, the symptoms will improve somewhat.