 [ Symptoms ] i have a rash on my upper inner thigh could be sti and spreading [ Disease ] hi and welcome to questio n doctors com the proved for cancer treatment is marijuana and cannabinoids use but hemp oil with thc included only has the making of a primary cancer treatment which even alone seems to have a great chance of turning the tide against cancer tumors it has the added advantage of safety ease of use lack of side effects and low cost if one makes it oneself wish you speedy recovery … dr ayman darrag