 [ Symptoms ] i have a itchy rash that comes and goes what could be causing this  the rash appears in different areas of my body for an example a rash showed up on my wrist and stayed a while and went away later the same day it appeared on my stomach and then on my thighs etc its itchy while it is present at one point my hands first turned red and then start to itch really bad to the point i had to wash my hands repeatedly i work in the medical field so i wash my hands a million times a day what could be causing this reaction [ Disease ] i generally recommend that my patients start introducing proteins such as meat and dairy at about 7 months    assuming that there are no dairy allergiesintolerances full fat dairy is what we usually recommend until age two years meats such as beef and poultry are usually well tolerated the proteins to stay away from until one year of age are fish seafood egg whites and nuts each pediatrician tends to offer different advice as to when to introduce these allergenic proteins so please ask your doctor about hisher preferences