I have contamination ocd.
I believe I've always had it even though I wasn't dx until my 30's - I was VERY secretive about my compulsions until then.
I understand the condition very well I'm told - causes (depends on what you agree with, there's evidence it's genetic, taught behaviour, bio-physiological, trauma related - physical and emotional) all of which apply to me so hard to know what is the definitive cause. Maybe all of them?), treatments, meds...
Which hasn't served me at all actually!
I've had several courses of cbt, other talking therapies, meditation, erp etc been on numerous meds...
None of which have really made a significant difference.
I am phobic of pretty much anything germ related but especially anything to do with any kind of "waste" be that "rubbish" or anything to do with toilets. But I also do a lot of counting and checking and have intrusive thoughts about anything to do with safety/security from locked doors to did I turn the cooker off.
I don't like being touched, especially by strangers as I don't trust their personal hygiene, almost everything gets washed/disinfected before using and there are so many "rules"
for this it affects my whole life - inc my sleep and my dreams.
I'm over 3 years housebound from the resulting agoraphobia. This is my 4th bout of agoraphobia each one longer than the last.
Been through numerous hcps too which is a whole other story!
But!
There are sufferers who if they get help as early as possible, fully engage with it and make a determined effort to recover and are fortunate not to face other obstacles who can and do recover to a point they can lead a normal life.
Ocd is not considered "curable" but "treatable" mainly because it's considered most likely to be genetic/bio-physiological insofar as our brains have developed differently to others.
I haven't given up, I'm under a new psychologist and awaiting a meds referral and possibly a referral for emdr (early days on whether this is considered effective, so hard to get referrals)
But I fear I will never be well enough to work full time or have an otherwise "normal" life.
Honesty with therapists is really helpful and important, but understandably difficult to do.