Acne is usually a blockage of the follicle opening, which forms acne and eventually causes poor sebaceous gland drainage, local inflammation, redness and swelling of the follicle, or a pus head. Therefore, acne is usually treated with retinoids to remove localized acne. Also topical antibiotic ointment, such as fusidic acid or Bactrim, or Clindamycin Hydrochloride gel. Severe acne also requires oral minocycline hydrochloride or isotretinoin pills. These two oral medications are 2 choices, not both. Acne can also be treated with blue light, photodynamic, or dye laser. For regular facial care, patients with acne also need to use some oil-removing cleansers to reduce the clogging of pores caused by facial oil. Hearthstone is an aqueous powder with astringent and plucking effect, usually with a pink precipitation, applied to the skin will form a powder-like film on the surface of the skin. This film will clog the pores, which is not conducive to the discharge of sebaceous glands, and is a topical medication that aggravates folliculitis acne. So you can’t use Furfuranum to treat acne. You can use hearthglass topically to treat hives. In summary, it can be seen that hearthstone has the opposite bad effect on acne.