There is - a disease.
To see alum in your dream, signifies frustrations on plans that you have set for yourself.
To dream that you taste alum, denotes that you have feelings of regret and remorse over the evil you have done onto an innocent person.
Alum seen in a dream, portends frustration of well laid plans. To taste alum, denotes secret remorse over some evil work by you upon some innocent person. For a woman to dream of quantities of alum, foretells disappointment in her marriage and loss of affection.