<s>[INST] I am having bouts of sneezing and itching eysin the early morning and several times in the day, speciaaly more if I walk in the high grass. Doctor prescribed Motek LC for next 30 days. After firs tab there is instant relief. If I discontinue, It will recurr or it is healed........ [/INST] Hi, Montek LC contains Levocetrizine and Montelukast. These molecules are given for runny nose, itchy eyes, sneezing etcetera due to allergic reactions. They do not have any severe side effects except some patients may experience gastrointestinal symptoms and Chat Doctor.  There are cases where this medication has been given for 6 months to patients as per physicians instructions. However, as you are feeling good with one or two doses only, you may feel to avoid taking it for next 30 days. I can understand your concern. In that case, you can take this medication for 5 days and then discontinue. However, I would like to caution you to keep extra doses with you so that you can start them if the symptoms appear again. If the symptoms do appear again, I would recommend taking the dose for full month as per advised by your consulting physician. If you feel you get these symptoms more while walking on grass, you can try some days not walking on grass and see if symptoms happen. This can help you to decide if you are allergic to grass or not. To be absolutely sure what you are allergic to, you can get your blood tested in laboratory for Allergy Test. However, you can go for this if the symptoms keep relapsing, and you are not sure what is causing them. Otherwise, there is no need for this test for occasional symptoms that can be controlled by medicines. I hope this information helps. Thank you for choosing Chat Doctor. Best, </s>