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Nicip plus is a tablet containing paracetamol
and it acts as a pain killer and anti infammatory so it may relieve your pain ;headache if you have.For sinusitis you need to take a medicine which will be a combination of antiallergic and decongestant to relieve the blocked sinuses so get it prescribed by a doctor.As for the drug interaction
Nicip plus will not react badly with antidiabetic
medicines you are on but it is advisable to take nicip plus when required for pain;fever and inflammation and that too under guidance of a doctor.