<s>[INST] what s the most effective ointment, medicine,etc for a skin rash on top of foot. Neither Ammens powder nor Neosporin are working, It just doesn t want to clear up. Thanks for nothing, and for standing by as well. What would I have done without you? [/INST] Hi, The rash could be a fungal infection or an eczema. I request you not to apply newsprint powder as it itself is an irritant.  I could not be able to arrive at a provisional diagnosis as you have not mentioned the characteristics of the rash. You could take an antihistamine tablet for managing your symptoms.  But, ideal line of management could be initiated only by a Dermatologist after proper clinical examination. Hope I have answered your query. Let me know if I can assist you further.  Take care  </s>