I would be asking the rheumatologist about biologics.
And I did... for which I received a stern lecture on trust in relations between doctor and patient.
Sounds like your rheumy felt a little threatened or thought you were trying to play doctor. I am assuming you are not in the USA because of your reference to Google translation. Maybe the culture is different in your country. Even in the US you have to be careful with some doctors not to be too assertive, because they will take offense.
Ginny - 58 year old female
Dx with USpA in March 2013; changed to AS in July 2015
Iritis and Scleritis
unicompartmental knee replacements: right-June 2014, left-Aug 2018
MTX, Humira, Cyclobenzaprine, plus Celebrex as needed
Supplements: Folic Acid, Vitamin A, Vitamin D, Calcium, Fish Oil, Culturelle probiotic, Melatonin (as needed)