If your washing machine has a good rinse and spin cycle, there shouldn't be any residual powder etc. left behind in anything. I haven't used any 'comfort'-type preparations for 3 years, if laundry smells 'good' after, the rinse cycle isn't enough. 'comfort' etc. can leave residue. This has produced a better result here: 60D for sheets and towels, 40 for other clothing and 30 x 30 for 'delicates'.
Sometimes even so my laundry feels sticky: haven't worked out why yet
- so I put it through another 30 mins rinse cycle at 30degrees, B4 hanging it on the line without spinning it. Occasionally of course it gets a heavenly rinse
/several times.
Candida thrives on sugars. It also dwells in the back passage to toilet hygiene is important.
Stop using pads ;-). These may well cause sweating 'below' and cotton knickers will allow the area to breathe. Or go without .........