It seems that the rash you are having may be drug induced,
Most probably the cause would be ibuprofen
How ever the rash may be increased by sun exposure.
So, you avoid ibuprofen.
And also avoid sun exposure.
To improve the condition,take steroids
in tappering dose.
As there is itching ,take antihistaminics like levocetirizine
I feel that you might improve, however ,you contact dermatologist
I hope you got my answer.
Dr. Ilyas Patel MD