A very old and wise Prof of Homeopathy -J.H.Allen wrote a book called Diseases and therapeutics of the Skin. In it he said that one should be pleased that the problems are on the surface of the skin ,and not burrowing deeper , where they can cause great harm undetected.
A nything thrown out to the skin is relieving a problem at a deeper level. Almost any pharmaceutical acts to suppress and drive inwards- not good for the health. Your problem is curable by good homeopathic treatment.