Multiple Chemical Sensitivity can be caused from an overload of toxins in the body. Do the HUMAWORM first along with the Hu-Mana-Tea. The tea can be taken long term and will really help bind to and remove toxins from all over.
After the HUMAWORM - you can do the 45 Day Organ Cleansing Package along with the tea.
A neti pot used with saline solution is also very helpful for people with MCS as it helps wash out the nasal and sinus cavaties.