Jake T, I agree with DG and would also recommend Oestrogel (flexible and easy to adjust the dose) and Utrogestan or something similar. I suffered with debilitating sweating attacks for years even though I didn't feel hot - I've never had hot flushes or night sweats. Basically, my thermostat was shot and for some reason, my body thought it needed to sweat even though it didn't. I used to sweat in airconditioning (always a bad sign), break into a sweat far too quickly and profusely and I found it difficult to adjust to changing temperatures - I hated it. I used to soak through my clothes in the summer and once (admittedly in Spain during the summer) I was driving on a motorway with the airconditioning on full blast and sweated through my clothes and into the car seat. I used to sweat on my face, bra-line and back. Believe it or not, I was using HRT but it was the wrong type at the wrong dose (namely, Mirena coil with patches and Angeliq) and I was not getting anything like enough oestrogen to rectify my thermostat. I also suffered with migraines caused by the synthetic progesterone but that's another story.
The only cure for me was Oestrogel (3 pumps now reduced to 2) everyday and Utrogestan (taken vaginally and cylically in very low doses), a small bead of testosterone everyday and this immediately cured the problem and now I feel completely back to normal and actually sweat less now that I did in my mid-30s - I now realise my hormones had started dropping off even then. Not only has it sorted the sweating out, it's cured a whole host of other things like general mood, better sleep, digestive system, better cholesterol levels/thyroid function/blood pressure readings, hair, skin, you name it.
Obviously I can only give you my own personal experiences and you might not need shed loads of oestrogen as I do to get relief but if you suffer with sweating, I would steer clear of a Mirena coil or HRT regimes with too much progesterone because it can raise body temperature - I sweated buckets on all of them!
Note, this is only my personal experience and others may have had very different experiences while using the medication mentioned in this post.