Natural medicines such as those dispensed in Ayurvedic practice can be safe and effective when used appropriately by trained providers. Search for providers that have training and can discuss and recommend the appropriate medicines. Ayurvedic practice incorporates into the patient assessment a very specific form of diagnosis This is topic for another discussion. With respect to the case you present, one week of extreme constipation, this complaint requires a medical (naturopathic, ayurvedic or similar) examination to look for the cause. Simple constipation brought on by poor diet, medication side effects or other, may be relieved by laxative herbs, or food products (senna, soaked flax, rice gruel, mint, triphala, psyllium) among many others. Exercise and lifestyle also should be considered. But in the case of a more severe condition the source of a possible bowel obstruction but must properly diagnosed.