“To make rose water… Pour boiling water over rose petals. Cover the container until the liquid cools, then strain, and if it is not going to be used within a few days, it should be frozen. Start with about a pint of water to a cup of petals and adjust the amount of petals according to the depth of scent you want.” (North Country Soap Making Library)

Is there any differences of the rose water content from your method and the easy method I found previously?

I found out squeezing my pimples and use rosewater to compress it greatly reduced the swelling in one night ^^