Very bad cough since week 29

I just had the worst cough of my life recently while I was 28 weeks pregnant. Went to see the GP but was prescribed very mild cough syrup because she said that I was pregnant. Couldn’t sleep for almost 5 days and I felt so terrible. I couldn’t control my urine and had to wear adult diaper all the time. At last, I rushed to A&E to get help🤣🤣 but I was told the same thing as the GP. Doctor can’t do much if you have cough during your pregnancy. Just eat fruits that are rich in Vitamins, stay hydrated, gurgle with salt water and get plenty of rest. I took fresh lime with honey which actually helped with the cough.