Is there a cheap way to get rid of bedbugs ?

No. No easy, cheap way to get rid of bed bugs. They get into cracks in wood and can live for a very long time. Spraying does not kill them. Heat works.

Contact Area Agency on Aging for assistance.

Call in the pros.

https://www.epa.gov/bedbugs/getting-rid-bed-bugs

Need to treat everything if you have them on your clothes they are probably in everything they multiply quick. Beds, clothes,carpet,car,furniture,curtains,linens,stuffed toys. Does he have bites on him? How to be rid of them https://www.doyourownpestcontrol.com/bed-bugs.htm Food grade DE(Diatomaceous Earth) but is harmful to lungs could be bad for him and doesn't work fast here's info.. https://www.google.com/search?q=DE+for+bedbugs&rlz=1C1CHBF_enUS750US750&oq=DE+for+bedbugs&aqs=chrome..69i57j0l2.6337j1j7&sourceid=chrome&ie=UTF-8

I was able to get rid of them at my mom's place in Phoenix, AZ. It takes a LOT of time and constant vigilance, but it can be done. I used Diatomaceous Earth. It's a white powder that you can get at WalMart, Home Depot, etc. Sprinkle it everywhere you can, carpets, closets, etc. Be sure that there is always DE on your surfaces, baseboards, etc. ALL clothing, bedding, etc, MUST be washed and dried in a dryer, then kept in dark plastic bags till bugs are gone. As I said, it can be done, but it takes about 4 months of non-stop attention. We also got rid of mom's entire bed, frame and all. Otherwise, you can have a Pest Control place do it, takes 2 visits and about $400. Good Luck!!