Wish this cough of mine will pee off!. I had a covid test and it came back negative, but can't go to…

Wish this cough of mine will pee off!. I had a covid test and it came back negative, but can't go to the doctors as they won't let you in if you have a cough. I do have a fantastic doctor who does phone appointments and he put me on antibiotics on Friday my chest no longer hurts. Its just this damn cough a banging headache and hot flushes. I have had so much honey and lemon drinks. Tried to gargle salt water but made me throw up. Any suggestions on how to get rid of the cough?