To diagnose Atopic dermatitis (AD), a dermatologist starts by taking a clear observation at the affected skin. The dermatologist will look for a rash. The dermatologist likewise will make inquiries. It is vital for the dermatologist to know whether the kid has irritated skin. The dermatologist additionally needs to know whether blood relatives have had AD, asthma, or roughage fever. Once in a while a dermatologist will perform a patch test. This therapeutic test is utilized to discover anaphylaxes. It includes putting small measures of allergens (substances that cause anaphylaxes for some individuals) on the kid's skin. The dermatologist will check the skin for responses. Checks are frequently done after a couple of hours, 24 hours, and 72 hours. Studies recommend that a few allergens can aggravate AD.