 [ Symptoms ] what is injection site rotation [ Disease ] your problem is a characteristic of cholinergic urticaria it is a type of urticaria where patients are allergic to their own sweat so whenever a patient sweats for example due to heat sun stress exercise etc the patient develops hives levocetirizine can suppress the problem till you take it once you stop taking it your problem will recur the management actually depends on you if you are fine taking cetirizine daily then no harm or else you can go for biological treatment which is a new form of treatment it can permanently cure the problem and you may no longer require cetirizine they are very safe with almost no side effect for further information contact a dermatologist online   > <link>