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1) You are suffering from Chronic Urticaria
2)It is not adviced to take Tab Omnacortil-10 for a long time,however you can continue tab Levocetrizine 5mg.If there is no relief in symptoms with tab Levocetrizine alone than you can replace this with Tab Xyzal-M (combination of Levocetizine & monteleukast) one tab before sleep.Besides this,you are also adviced to take following medications-
Tab Cefakind -CV 500mg BD for 5 days
Tab Bandy plus one tab 2 hrs after any meal.