Can allergies give you flu- or cold-like symptoms? also, should taking mucinex (guaifenesin) cold, advil, zyrtec, and emergen-c all together help?

It's possible: Sinus allergies can mimic a "cold ". Try only one medicine at a time. Start with Claritin (loratadine) d or Allegra d , plus rest and liquids . Most allergy and cold symptoms should get better in 4-5 days.

Allergies: Can feel like a cold. You are over medicating.One otc oral allergy medication and can add nasocort aq nasal spray which is now otc . If still miserable see your doctor.

Cold sx yes: Allergic rhinitis may mimic a cold but it usually lasts longer than a cold (.