Good deal of the figures I've opened recently (old and new, cheap and expensive) have had varying amounts of plasticizer on them and its been really getting on my nerves

I've been washing them periodically in warm soapy water and leaving them to soak like in pic but its only mitigated it so much. I don't leave my figures in their boxes for long periods of time and don't live anywhere warm

I don't just wanna pose my figures and not touch them again because of the hassle and stickiness, I wanna pick them up and mess around with them. Was wondering if any of you guys had any other suggestions for dealing with it? Thanks fellas