In case of a medical emergency: dial 144, give your location first and explain your symptoms. If you are calling for a customer, also give your location first and then explain if the customer is conscious and breathing. If he/she does not breathe, you are facing a medical emergency and you must first clear the airway (head back, liberate airways with a finger if an object obstruates them), breathe twice in the nose by closing the mouth and then do 30 chest compressions / 15 seconds. This is called cardiopulmonary resuscitation. Then repeat this cycle of 2 breaths and 30 rapid and deep (>5cm) chest compressions until help arrives.
If the health problem affects you personally and is not an emergency, a first question arises: what is your work permit ?
If you work with the 90 days permit, you will only have the right to reimbursement of medical emergencies in Switzerland by the insurance of your country of residence. Also, for treatment and outpatient consultations, it is advisable to turn to structures for people without residence permit such as CAMSCO in Geneva and in Point d’eau (no emergencies) or Unisanté in Lausanne. You can also contact the associations for sex workers Aspasie & Fleur de Pavé who can relay to places of free care. Also remember that consultations and treatment are much cheaper in France, Italy and Germany, if you decide to pay yourself for your healthcare.