hi,sylvia im on mtx and i have had this with a cold and yes ask advice,i gave myself a day or 2 before i called the nurses and got a ticking off,i dont have any tonsils so anything goes staight to my voice box/chest and i get the cough,i ended up at the gp got some extra painkillers and antibiotics as i got really bad,he prescribed me some soothers etc,if you buy over the counter ask the chemist about the ingredients with regard to your meds mix,good luck hope you feel better soon,dorothy