I will like to know can u tell me what my mother might have,shes have been itching,and losing weight from her skin problem,I her took her to a doctor,they told her she had a skin condion up under her skin,that causes rashes,dark spots from scratching,they also told her to go buy a over the counter medicine that related with lice medication and gave her another medicine. from them it cost like $700 for both together,can u please help me,by the way its under her skin