Cloreseptic spray. Works wonders and I like the taste of it. I used the green kind
Gurgling warm salt water (not from the ocean). hot tea with honey (just don't burn your mouth). Pretty much anything warm, maybe take a warm shower and let the water hit your throat.
Ask your doctor, I had the same problem after a congestion and was up coughing all night, she said it's safe for me to use sudafed or robitussim.
I use throat lozenges. Like halls. If you have a cold you can take robitussin DM or Sudafed 60mg every 4 hrs.
Also if it is caused by your nose being stuffy use saline soray a couple times a day so your not breathing in through your mouth and drying it out.
Mix honey lemon and ginger in a jar then put a table spoon in hot water
2 tbsp honey 1-2 tsp lemon juice half a cup water. Warm it up to the temp you desire. Its what helped me more then anything getting over the recent cold I had