oxymetazoline

It is chest and common cold season and my husband is taking the prescription drup diovan for hypertension.  sinusitis has always been an issue living and spending alot of time on the salt water as well as allergies. 
Currently he has a standard fall common cold with nasal congestion as well as a runny nose. My question is have there been any reports of diovan reacting negatively to diovan? He is 47 with controlled hypertension with the diovan

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