Where can you buy wrights vaporiser Used for my children when other remedies for coughs etc did not work. It has been taken off the market. Do you know where I can get one or how to make one?

we could't get wright's vaporiser fluid so we use obas liquid a few drop to try for an hour the most just in case. the room smell better but whether it work we have a go. we weren't

sure if it is ok to leave on overnite.