I thought I'd share a recipie for these I've found.
You'll need something like a lotion bottle. Olive oil (preferably virgin, extra virgin), herbal essential oil of your choice, the safer the herb the better. Vodka.
4 parts olive oil
1 part herbal oil- Rose, Lavender, Orange blossom
1 part vodka
Add the ingredients into your lotion bottle. Shake the bottle after adding the ingredients and before use.
Add the oil to your bath.
Always before using herbal cosmetic products, rub a bit on the inside of your wrist, a small amount, for a skin test. Do not use the product after any sign of irritation.