Thanks for posting your query.
Is itchy rash present on face or not?
With the available information there appears to be possibility of scabies and atopic dermatitis
Presence of itchy rash along with location suggest the diagnosis.
Atopic dermatitis is an allergic manifestation which gets precipitated by warm climate and sweating.
You should consult with internal medicine specialist/ dermatologist
and should go for thorough check up.
Treatment depends on clinical examination.
You should apply parmethrin lotion along with calamine
on affected site.
You can continue with steroid ointments
Get well soon,
Dr. Mayank Bhargava