When using Elidel, a TCI, commonly used to treat eczema or dermatitis; how long should it take (using twice a day) to start seeing results? I used this for 12 consecutive days with no improvement in my skin discoloration or tenderness, & I was using it on naturally thin skin to treat what I thought was dermatitis. I have heard that it takes longer for Elidel to take effect compared to a low strength steroid cream, but exactly how long should you use it for, without noticing any improvement?