Struggling with news of ntm

Hello everyone, my partner, 35 y/o M, was just diagnosed with ntm. The doctor said he has two types, one mac and another difficult one (not sure of the name). He also has pseudomonas. He has a productive cough but apart from that he is healthy. They did all sorts of tests to discover the underlying cause and nothing showed up. He has asthma and is on biologics and advair. We are waiting for genetic testing now and bronchoscopy is scheduled soon. His ct scan is very good no fibrosis or permanent damage. He was on ciprofloxacin and then tobramycin for a month for pseudomonas. The pulmonologist wants to start treatment of ntm but the infectious disease says its a very complicated case and treatment will be difficult (two types, needing IV antibiotics) so she is hesitant. Has anyone had a similar experience? Unexplained ntm and pseudomonas? Experience with the big 3 and IV antibiotics? What to expect? We are both absolutely terrified.