A process for treating inflammation locally or topically by administering a compound of the formula: ##STR1## wherein M and M' are hydrogen, hydroxy, halogen, lower alkyl of from 1 to 3 carbon atoms, lower alkoxy of from 1 to 3 carbon atoms; NH.sub.2, RNH, R'.sub.2 N where R is lower alkyl of from 1 to 3 carbon atoms or lower acyl of from 1 to 3 carbon atoms and R' is lower alkyl of from 1 to 3 carbon atoms; X, Y and Z are hydrogen, hydroxy, halogen, lower alkoxy of from 1 to 3 carbon atoms or lower acyloxy of from 1 to 6 carbon atoms, in association with appropriate pharmaceutical carriers.