When caring for Ethiopian opals, there are a few things to consider, some of which differ from those for Australian opals:

1. Avoid water and moisture: These opals absorb water, which can not only temporarily change their color, but also increase the risk of cracking when they dry again, so it is important to remove the jewelry before showering or swimming.

2. Protect against creams and body fats: Creams and body oils can penetrate the stone in a similar way to water and affect both its appearance and structure. It is best to wear Ethiopian opals in jewelry that has a completely closed back to minimize direct contact with the skin.

3. Gentle cleansing: A soft, dry cloth is all that is needed for cleaning. Chemicals or harsh brushes should be avoided.

4. Be careful with temperature changes: Rapid temperature changes can damage the sensitive opal, so avoid extreme climate changes when wearing it.