Beechams Flu Plus Hot Lemon Sachets Beechams Flu Plus Hot Lemon Sachets provide relief from the symptoms of flu, colds & chills, including headache, shivers, aches & pains, blocked nose & painful sinuses, catarrh & sore throat. They contain three powerful active ingredients to fight those pesky symptoms: Paracetamol: a painkiller that also reduces your temperature when you have a fever. Phenylephrine hydrochloride: a decongestant which unblocks your nose & sinuses helping you breathe more easily. Ascorbic acid (vitamin C): helps to replace vitamin C which may be lost in the initial stages of colds & flu.