Bathing with Scottish Lye Soap or smearing a paste of soft lye soap on your extremities before hiking off into the woods is good for discouraging tick and chigger bites. Any bug bite will be relieved by washing with the soap. I have mashed up soap and applied it to bites to stop the sting and itch for immediate relief. Grandma said to double whammy any kind of itches. So also make ice cubes out of vinegar and rub it on. It feels great and works very effectively with the soap.
The soap will not get rid of mosquitos so I recommend mint tea . Just make any kind of mint tea (dont add sugar) and spray it on. Mosquitos hate it.