yep. Pick up a box of corn starch at your local grocery store and it will probably last you forever.
Clean the pocket gently and well. You can do that with your mal-a-ket or chlorhexidine or witch hazel or what have you.
Witch hazel should work well to sooth the itchiness.
Chlorhexidine is an antibacterial soap and also fairly cheap if you get a gallon of the veterinarian grade (my last gallon was $17 and will last several years). Make sure to be extra careful not to get it into the pupās eyes or really any mucus membranes.
Once you get the area nice and clean then dry it really well.
The whole time, cleaning and drying, assume if the area is mucky that itās going to not feel nice. This will feel like a bad diaper rash to them if the area has been infected or otherwise bad.
Once you get the area clean, apply corn starch. You can either take a pinch and try to finger it in there, or use a cotton pad, ball or qtip depending on the pocket (tail pockets likely require qtip to be able to get in there. Nose ropes you can likely use your finger or some cotton). The plan is to dust the area with the corn starch. Pretend you are applying blush or similar. Corn starch is hydrophobic and will work to keep the pocket dry.
If the pocket is fairly funky, you will notice the corn starch will take on a paste/glue type texture after it has sat in the area a while. Because of this be careful the next time you clean the area to gently soak it first which will loosen the muck without having to scrub it. (Remember we want to be gentle because the area is already quite irritated). Once the pocket is under control it wonāt gunk up and you probably wonāt even see any corn starch from your last application.
Do this a couple times a day while there is an issue. Then once the issue is under control (might take a couple of weeks) you can space it out until you find a schedule that works. Itās not unheard of to have to powder the area every day.