Im coughing really badly can anyone help?

I started to have a sore throat around 9 on Wednesday night before i went to bed.The next morning my voice was all low and i sounded congested. It hurts to talk to talk and swallow. I keep coughing up reddish yellow mucus and I constantly have to keep blowing my nose. I'm really hot and sweaty all the time and I'm coughing non-stop! Its been like this since wednesday.My voice is worst in the morning as well as my coughing and runny/stuffy nose. It becomes mild through out the day then it impossible to go to sleep at night please help me what should I do?