There must be something real in it if it's working and therefore been incorrectly labeled as homeopathic. However, that being said, do NOT look to any true homeopathic BS treatment, because it does NOTHING! So just don't focus on this area of hocus pocus for further ideas for treatment. People really need to stop funding this snake oil so it can just die already. When you come from a country where, despite numerous drives from the public and health professionals, they still fund homeopathic treatment on the NHS, you'd be just as angry as me knowing your tax money goes towards paying for people lying to patients and the apparent magic they claim to produce to cure them.
Best way to attack acne is by seeing real doctors, washing face (but not excessively), concentrating on reducing the amount of times you touch your face (once you start taking notice you'll realise it's insane the amount of times you touch your face, the average is between 3000 to 4000 times a day!) and eat more veggies. Not so much fruit! I've found great results by juicing but I only juice veggies. Fruits are better consumed by eating whole, and in a far less amount that vegetables. Fruit has a lot of fructose and for acne you want to cut down on sugar, even if it's the good sugars.
I started having acne pretty bad and especially with the bumps under my skin that you can do nothing about. So I started using a stronger acne cream (Oxy vanishing treatment) once to twice a day depending on how dry my skin gets and I make sure to not only wash morning and night, but to either wash after sweating or at least use Oxy pads (not as strong as the cream but good for just washing the face after sweating) if I wasn't able to hit the shower. Then I started cutting down on sugar and processed food intake and finally started juicing every day for snack and lunch and using the pulp to make soup for dinner (to make use of the fibre in the pulp). Now, except for the occasional poppable spot, I have pretty clear skin. Diet plays a huge role with acne. That's why getting it as a teenager is such a disaster, because we all know what teenage diets are like!
Contrary to what's often believed, it can be okay, and sometimes better, to pop spots. Anything hard or firm under the skin, don't even think about it, and never force it too far or it'll be something scar worthy. Use cotton pads or something to squeeze rather than fingers/fingernails as that cuts down on bacteria spreading to your face. Basically, if it comes to a head, you can pop it if it'll pop easy. Despite all the "it spreads bacteria!!!" claims, it's been found that if you do it safely by washing hands and using cotton pads and washing area before and after, this is actually fairly minimal and the benefit of getting rid of that spot quicker outweighs the risk of spreading bacteria because now that pus is gone you can properly clean that area again. If this is something you do regularly you can buy a Comedone Extractor to better perform the task. This is what the professionals use instead of regular finger squeezing.