Advil (ibuprofen) cold and sinus decongestant- says not to take with asthma? I don't have high BP or anything but I have asthma is this safe to take?

True. Decongestants tend to make secretions thicker and more difficult to bring up. Asthma causes thick secretions and increasing fluids and promoting coughing is a good thing. Never suppress a cough with asthma. It is best to use asthma medications. All the best and be seen for your symptoms.
Yes. This combination is commonly used in the presence of asthma. There is no proof that antihistamine worsens your asthma.