Talk to Dermatologist on Skin Elergic

I am facing this skin elergic issue for some years but now i want a solution after 3 to 4 days elergic starts itching starts whole body some times on legs arm pits on back i feels when i eat beef or fried items then after 4 days it starts itching and also legs pe kafi dane hogae hein r mjhe apni face skin bhi ka bhi treatment krwana hai kindly need advice....r zyrtec naam ki medicine le rha hun for temporary solution