I Have Had Very Bad Ibs Taken Buscaban, Didnt Do

i have had very bad ibs taken buscaban, didnt do anything, then i had avey bad swollen tongue and big red spots in mouth...taken canistan oral it didnt improve i now am taking periton due to my allergies but mytongue still swollen and my mouth exstemely dry with acrust onaround my dry lips and have adry irratable cough