I've had a temperature of 38-39C (under the arm) for 4 days. I recently started taking Tamiflu on prescription. I now have what seems to be bad congestion in the sinuses - the backs of my eyes hurt when I look in different directions and my cheeks and forehead are tender to the touch. I am now also developing headaches. I am due to take a 20 hour trip to Europe tomorrow evening and want to get rid of the sinus problem before that.
Can I take Sudafed while also on Tamiflu?