If a limb becomes red, bruised or painful, stop the pump and tell the therapist . Some considered that pumps were valuable for some patients, but they had to be fully supervised and used carefully. Pumps are not cheap. Both the wisdom and the ethics of this are highly dubious. All this is not to say that pumps should never be used.
Some hospitals can only offer pumps.
However it is important that their dangers be appreciated and avoided as far as possible. Based on our findings and those from many colleagues in Australia and in many countries, we believe that pumps should not be used alone. When more than one area of the body is lymphoedematous. Genital involvement was studied in the first 128 consecutive leg lymphoedemas at a USA lymphoedema treatment centre. Thus, pumps gave somewhat better results in Grade 1 than Grade 2 lymphedema, but still caused just as many complications.