I know little of the Inca culture. However I have seen sucking being performed in Native American medicine. Usually through a bone which is then blown out through water or alcohol. I have seen spitting out of tequila among Mayan medicine work. It seems unlikely that sucking without the release by blowing would sound proper because breathing, blowing, sucking are animistic and so have power, to retain that power or set it loose would be contrary to the very purpose of removing the offending animus.
I have provided a resource of Native American sucking medicine.
http://www.mpm.edu/wirp/ICW-34.htmlSucking Doctors
The sucking doctor worked to remove the cause of sickness by sucking it out of the patient's body. This mode of curing was widely practiced throughout North America and in other parts of the world. After he had accepted the initial gift of tobacco that constituted a request for treatment, the doctor stipulated the time, the place, and the price of the ceremony. The ceremonies ordinarily were held in the evening or at night, and a small group of witnesses were present. The group would include the doctor, his assistant or runner, the patient, and a few spectators, often friends or relatives of the patient. Dogs were banned from the vicinity as their barking might cause the doctor to choke. The doctor's personal equipment consisted of a small tambourine drum, a gourd or tin-can rattle, and two or three tubes that were kept in a deerskin bag or cloth wrapping. The tubes, exposed only at curings, were sections of deer bone about three inches long.
In more recent times, the tubes were brass cartridge cases with the ends removed. The patient, usually partially stripped, was stretched out on the floor on a blanket. Tobacco was passed, and each person would take a pinch. The doctor dedicated the tobacco to the spirits and enlisted their aid. All the while, he shook his rattle and was accompanied by the assistant's drumming. With the tube projecting from his mouth he kneeled over the patient, moving about until he located the place where the sickness originated, sucked out the object through the tube, and spit both it and the tube into the shallow dish. The drumming ceased and the dish was passed around for inspection. If any foreign matter had been drawn out of the patient, it was thrown into the fire. Several such suckings might occur before any matter was visible in the dish. A curing ritual might last from a half hour to two hours, depending upon the success or wishes of the doctor.
I have never seen medicine performed that isn't serious with drumming, songs and the use of other participants, medicine paraphenalia such as plant derived pharmacopia, sacred rattles or other sacred objects enjoined during an extended period.
This thread may qualify for the comedy section....but I am not sure
I´ve just come home from a New Age venture where I met an "Inka shaman" who were healing people by sucking their throats! (no,no...NO vampire...an Inka SHAMAN LOL) He made some money out of that. And he is definitely Native from South America.
Please please let me know if this is traditional inka healing procedures