Thanks for the query.
I would like to know if you are a diagnosed as a case of psoriasis
or you feel it to be a psoriasis.
According to me you are suffering from a condition called as atopic dermatitis
Treatment with steroids
may be required,
Please meet a dermatologist
for exact diagnosis.
Let me know if you have any other doubt.
you can ask a direct question to me on this forum, following the below link.
Wishing you a good health.