The first invention provides an external preparation for treating dermatoses comprising vitamin E and squalane, which has an efficacy at least equivalent to that of external preparations containing adrenocortical hormones as the active ingredient. The second invention provides an external preparation for treating dermatoses comprising an adrenocortical hormone, vitamin E and squalane, which is reduced in adrenocortical hormone content as compared with conventional preparations, is also reduced in side effects, and has high clinical efficacy. The third invention provides an external preparation for treating dermatoses comprising a nonsteroidal antiinflammatory agent, vitamin E and squalane and/or squalene, which is reduced in side effects and is highly efficacious. The fourth invention provides an external preparation for treating dermatoses comprising an antihistaminic agent, vitamin E and squalane and/or squalene, which is reduced in side effects and is highly efficacious like the above preparation. The fifth invention provides an external preparation for treating dermatoses comprising vitamin E, squalene and squalane, which is reduced in side effects and is highly efficacious.