How to remove a cyst on your back<br>Use a warm compress. Soak a clean washcloth, cotton pad, or sponge in warm water and apply it directly to the cyst. Repeat this action several times each day.
This action should be repeated at certain times
This statement fits into the neither category, because the context does not give us exact times to repeat the action. The statement may have interpreted the context as if it did. 
( z1 recommend :ARG1 ( z2 repeat :ARG1 ( z3 act :mod ( z4 this ) ) :time ( z5 time :mod ( z6 certain ) ) ) )