What is a good homemade face ointment?

depends on what caused it -- wind/cold etc., Lanolin, Coconut oil, vaseline; if you don't know - you need a Dr. before using anything -- it could be bacterial, allergic reaction to something, fungal, internal infection --

A trip to your doctor or nurse practitioner would be the best place to start... you need to know what type of rash it is ... and what has caused it.

A visit to your healthcare provider would be the best suggestion.

An urgent care or primary care visit might be helpful. A dermatologist if treatment doesn't help. Some things will irritate a rash more instead of helping.

Try Aquapor (aquafor) available at Wal-Mart and pharmacy

Yup - check with your doctor. Many things can cause a rash and you need to know before you apply something that won't work or will make it worse.

Visit a healthcare provider. If you want to try something at home first, over the counter cortisone cream may help. But it could make it worse.

Since that rash could be caused by a number of things, a visit to your doctor/healthcare provider will give you the best answer to your question.