To get the best diagnosis, an in-person evaluation would be the proper course of action for you. A hair loss specialist will be able to set you on the right track and discuss possible options, with many offering virtual consultations this may be easier than you think. AGA is the most...
You have not stated what type of hair loss you have been diagnosed with so it is somewhat difficult to comment fully. However, if the diagnosis is androgenetic alopecia (AGA), all the treatments can be used as monotherapy. Generally speaking most of the treatments for AGA are additive meaning...
In my opinion, the advantage of using doxycycline is that it has been proven to work in a sub antimicrobial dose as an anti-inflammatory agent. We usually prescribe 20 mg either twice a day or once a day. This is a generic equivalent of a dermatologic drug used to treat rosacea called Oracea.