Hello, Welcome to HCM I have gone through your clinical history carefully and have understood your concern. Montek-LC consists of monteleukast and levocetrizine.It does have some side effects like headache,dizziness,heartburn,upset stomach,tiredness,stomach pain ,tooth pain and stuffy nose. New drugs have evolved which can counteract these side effects with ease.So, I advice drugs like Third generation antihistaminics like levocetrizine,olopatadine which are relatively very free of side effects and are more patient friendly. Since urticaria in your case is more than 6 weeks duration,it is usually termed as Chronic urticaria,which also requires low dose steroids for improved outcome; Ex-hydrocortisone for short period of time,when used on intermittent basis,can dramatically control symptoms of itching and rash by reducing the causative inflammation and bring you prompt relief. Hope you are happy with the answer. Thank you