Skin patches on itching. Please help.

Everyday once i come back from office, after 7pm i starts to get itching mostly on forearms, neck, chest and after itching gets red patches. They vary in size sometime last for as long as more than 2 hr. Some time they stay till morning i could see and feels itching in morning. In morning i felt only twice or thrice usually disappears in morning Some nights i feel suddendly attacked , too much itching at the same time on multiple body parts. ****************** This condition is for more than a mnth, consulted with dermatologist. His pres. Is attached. Untill i kept taking the dose(only 1 tab Teczine), for 15 days every night, i didn't get them now for last 1 week again feeling the same. NOTE: i didn't take continuous, completed 2 weeks dose almost in 3 weeks :( As per doc prescription, i took blood report, attached, too which is normal too. *************** I am very much disturbed, plz suggest some help, not able to focus. Please help.