Most sinus infections are viral, not bacterial, so these powerful meds do little to help.
For acute sinusitis, there are very well done studies indicating that antibiotics are not necessary in the vast majority of patients, and most people will be able to clear an infection on their own.
Antibiotics for sinus infections should only be considered if you develop a fever of 102 or more; have severe face pain and tenderness; if your symptoms last longer than a week or so; or if your symptoms improve and then worsen again.
How to get rid of a sinus congestion with steam:
Steam treatment is the best way to break up the mucus using steam from hot water. For greater results, include a few drops of peppermint or eucalyptus oil. These oils have a soothing aroma and help to increase the effect of breaking up the mucus.
Prepare the hot water, let it boil; you won’t be putting it on your skin. Apply the oil to the water and pour it all into a bowl. Put your face over the bowl and drape a towel over the head as you inhale the steam. The towel will prevent the steam from escaping. Inhale deeply, taking in all the steam that you can. You can get the same effect with a humidifier and may even be able to add oil to a separate small tank or directly to the water.
Stay hydrated with water with energy drinks that contain electrolytes, hot tea and clear broth. These fluids act as mucus thinners which will allow it to drain easier from the sinuses.
A great tip is to include foods in your diet that have special properties allowing them to dissolve mucus almost like a decongestant. Such foods are spicy foods such as horseradish or cayenne pepper and vegetables like onion, garlic and ginger. Mix any one of these with apple cider vinegar and lemon juice to create a powerful decongestant elixir.