Hi I've found a good way is to search local facebook groups in your area and post on their wall, with their permission.
https://www.facebook.com/groups/156980277696997/?fref=ts
I just put Lincolnshire mum in the search bar and clicked groups and other groups come up. When you post on their wall offer them special offers.Also search for other related industry's and team up. photographers. local mums business groups are good
also try your local netmums and put a link to your facebook page offering them something lovely when they book with you only for your facebook likers.
The something lovely could be inexpensive goody bag or money off their first treatment.
xx good luck xx