As per Ayurveda this is Krishna shonit caused by vitiation of Vata humor. This may not necessarily be infectious but may manifest all the symptoms of vitiation of Vata humor that may include backache, pain over pedu i.e. uterine region on trunk, oedema later, anaemia, lightheadedness and problems of lactation. You may feel dryness, cold etc. It s the result of improper cleaning of uterus post partum. Vaginal discharge also associated with such consequences. In Ayurveda Sootikabharan Ras and Kumaryasav, Rohitakarishta, Ashokarishta and Pathyadi Kvath etc. are choicest herbal medicines specifically to be used post partum. Though these are multithrong and used otherwise too. Safe, economic, side effect less pure herbals may be used in such conditions. Your Ayurveda doctor may enlighten you more on these and uses thereof and which combinations are suitable in given conditions. Hope it gives you directions to find non toxic way to settle the problem and also regain strength of the body.