STREET DOG BREETHEING ISSUES. Guide me!

I take care of a street dog since last 10-11 months she is very close to me she is suffering from some breathing problem earlier i gave her tormoxin clav syrup she became well but a week ago she is having vommiting with breatheing issues so after doctors advise i have given her these vaccines 1.raksharab 2.rantac 3.onda 4.perinorm 5.taxmin250 6.tribvit and tormoxin clav syrup for 3 days 1-1 2.5.ml 400 mg Now still she is facing breatheing issue altough her vommiting is stopped completely again doctor advised me 3 more inj. 1.inj deryphiline 2.inj dexamethasone 3.inj amoxyrum fort Is those injection safe and maybe she is pregnent as well i see some behaverioul changes in her pls guide me regarding her treatment and these 3 new inj. Thanks