Call the pharmacist. If they're closed, call another 24-hour pharmacy. (Use the Yellow Pages under "Pharmacies.")
It might be an allergic reaction, and I don't think you should take another one. Do you have any itching? Is there a 24-hour nurse you can call? The pharmacist would be best. You could ask what to do for the pain too. Pharmacists are so smart, kind, and helpful. S/He will guide you.
Bless you and good luck soon.
