Erythromycin ointment has no effect of lightening spots. Spots are a common skin disease with brown or black pigmentation and capacitive damage on the face due to the increase of melanin in the skin, which mostly occurs on the cheeks and forehead and gets worse after sun exposure. Erythromycin ointment is the ointment we usually contact the most, which is cheap and easy to use. Some people even think it is omnipotent, and some patients with pigmentation will want to use erythromycin ointment.
Erythromycin ointment is usually used to make the wound heal quickly after the skin surface is damaged. But the stain that we grow up with is not the so-called skin damage on the skin surface. It feels no different from normal and healthy skin, but it looks darker. Erythromycin ointment does not have the effect of diluting melanin, so the use of erythromycin ointment is actually not beneficial to the treatment of our pigmentation.
Furthermore, erythromycin ointment is a hormonal ointment, which will be dependent after long-term use. Once the skin is dependent on a certain ointment, it will become particularly sensitive and fragile, and its self-recovery ability will become worse.