These cups should never be reused once they have already been used for a hijama session. Indeed, germs and viruses can only be killed with the help of an autoclave reaching more than 600 degrees, which is impossible with plastic.
Moreover, hijama is a divine science, and there is a reason for this therapy recommended by the angels. When blood is drawn through this therapy, we are not able to see with the naked eye the illnesses it contains, especially the so-called "occult" illnesses.
This is one of the reasons why the equipment used for a patient must not be kept.
What the science says: hijama
What published research says about the remedies mentioned above, for context only — these studies address material causes; healing belongs to Allah.
Hijama
Hijama (cupping with scarification) is an authentic prophetic remedy. Modern research has mainly focused on pain: meta-analyses show a reduction in chronic lower back pain (Rev Lat Am Enfermagem, 2018) (Complement Ther Med, 2024). Precaution: wet hijama is an invasive procedure — strict hygiene, single-use equipment, and a trained practitioner are required; it is contraindicated without medical advice in cases of coagulation disorders, anticoagulant use, severe anemia, pregnancy, or significant frailty.