It is a process of therapeutic vomiting(induced), which helps eliminate the toxic or waste matters from the stomach and thoracic cavity. Kapha dominant diseases like severe skin diseases(psoriasis, urticaria); bronchial asthma, mental disorders etc. are selected for this treatment procedure. This process is not suggested for expecting mothers. Normally eight bouts of emesis are followed. The vomiting is stopped when yellow coloration is seen. Then, dhoompana – inhalation of medicated fumes -is done through a special process. Finally, certain rules have to be followed called panchakarma that basically implies strict diet regimen.
Virechana is the administration of purgative substances for the cleansing of pitta through the lower pathways. it cures pitta or pitta dominated diseases. The treatment concetrated on the toxins that are accumulated in the liver and gall bladder. Along with advance preparation, this treatment is a flushing of the whole gastro – intestinal track with herbal laxatives. This powerful treatment quickly reduces body heat(pitta); liver, gallbladder and colon congestion and helps improve rashes, itching, skin inflammation and acne while improving digestion and boosting metabolism.
The process of vasto or therapeutic enema is resorted to eliminate toxins from colon and strengthen the tissues. Two kinds of vasti are followed in ayurveda. Snehavasti is the vasti were medicated oils are used. This is not advised in patients suffering from diabetes, anemia, diarrhea, and obesity. Poorvakarma is required here. For kashaya vasti, honey, rock salt, sneham (oils) paste of medicines are required and mixed one by one in the above order. This concoction is taken in an empty stomach. After the process the patient is allowed to take a bath.
Diseases due to vata are treated by this process. Medicines are selected as per disease and stage.