I just took 2 sudafed for my sinus congestion, can i take anything with it for my coughing spasms?

COUGH: Sudafed dries the nose. Coughing episodes are controlled by cough syrups like suppressants, benadryl, (diphenhydramine) etc.

Use but be cautious: Yes, you may use cough medication but you have to careful of side effects and possible interaction with other medications. Coughing is necessary to clear your lungs from mucus build-up and help in keeping your airways open. If your cough is keeping you up at night, then you can use cough suppressant so you have a good rest. Tessalon perles (benzonatate) can help. Becareful of the dm's.

Coughing spasms: Coughing spasms are symptoms of whooping cough especially when gasping for air in between with or without choking or vomiting are signs of pertussis or whooping cough. If the cough is persistent, i recommend you to be tested for it and/or get treated. Cases of pertussis have increased recently thus my vigilance for diagnosing it.