Trying to stop the chiggers getting you is like stopping the ticks. But harder.
Wear light color long legged trousers. Tuck the legs into long socks. Use Permethrin or DEET on the clothes.
Once you get bit the best thing I have found is to use Benydryl gel on the bites. It is easy to spread all over the large area of bites. And maybe the oral meds as well. For some reason it seems like chigger bites itch early in the am.
I have tried the soap idea and it did not work for me. Chiggers do not take long to bite you. When looking at land years ago I walked into an area I knew I should not. But I had talked to a neighbor of the land that was for sale and they really insisted I needed to see the lot. :laughing: And they were right. It had old boats, 55 gallon drums, trash, a bus, a car, etc.
But to see that stuff I had to walk through Vetch which I call Tick Weed.
I was wearing shorts and shoes with no socks....
Driving back to the nearest town I felt itchy. I looked down at my legs and I was COVERED in Chiggers. I stopped at the first gas station and bought the LAST can of bug spray for $5. I would have paid $20.

Used the WHOLE can on both legs. The people at the pumps thought I was nuts.

They were right I should have bought the spray BEFORE wading into the Tick Weeds.
The ticks had not been on me more than 40 minutes. Most likely 20 minutes.
Chigger bites do not bother me as much as they used too. But they are still bad. I have found that itching the heck out of the bites until it ouzes white fluid seems to end the itching the fastest. Not a great solution though.
Later,
Dan