With your history , it seems that you are having delusion of parasitosis.
It is a psychological condition in which patient feels that something is moving or crawling on the skin. He feels that he has infested with insects . There is unwanted and odd sensation .
The cause of delusions of parasitosis is unknown but it has been classified as a monosymptomatic hypochondrial psychosis.
However, you should be investigated to rule out internal diseases.Antipsychotic
drugs like olanzapine
, pimozide, resperidone ...etc may be used.
You cosult nearby dermatologist
If needed, psychiatrist
may be consulted.
I hope you got my answer.
Dr. Ilyas Patel MD