IS It Safe To Take Montair FX Tablet Regularly?

Hello Doctor, I have allergic cold and persistent symptoms since last 15 or more years, recently since two years there was some relief when for a prolonged period i used Montair Fx tablets daily for few months, since then it was infrequent symptoms which i faced, However since last one month i am in an overseas assignment as part of my job and staying in a Hotel on a long term basis and i experience continuos symptoms of nasal congestion, sneezing, mild itching and running nose. I just take a Montair FX tablet and i feel better. My question is do i continue to take these tablets on a regular basis for some extended duration? I have frequent headaches as well and i usually take a paracetamol 650mg.