 [ Symptoms ] my5 year old has a viral infection is it safe to give her mucinex with tylenol or motrin she gets a fever the mucinex is just for cough [ Disease ] yes you can do this but remember that a fever    especially a mild one in a child    is actually helpful in fighting a virus a fever is the one of the body is most powerful immune responses so it is not necessary or even medically recommended to treat a fever you can however treat the discomfort associated with a fever so if your little one seems uncomfortable just use the acetaminophen or ibuprofen products that you mentioned mucinex is a mucous thinning agent and will not necessarily help a cough loosened mucous can drain down a child is throat at night and actually make a cough worse so please keep that in mind during the day mucinex is certainly okay use saline nose spraysdrops and use a cool mist humidifier colds last about a week but some symptoms like runny nose or cough can hang on longer do not over treat a cold