<s>[INST] I have a lesion on the top of my hand. At first I thought it was a bug bite . It blistered up and the blister popped. Now it is an open sore with tiny pus bumps around it. It itches and the area is red and swollen. I have been putting cortizone cream on it. This has been going on for almost 3 weeks. I was hiking in the woods when I first noticed it as a scratch . [/INST] Hello, Thanks for the query, You might have developed a mixed fungal and bacterial infection. Please get a KOH mount done, This can confirm the fungal etiology. Also get a gram stain for finding out the bacterial etiology. Treatment can be with oral antifungals as well as with topical antifungals along with antibiotics. Please meet a dermatologist for exact diagnosis. Let me know if you have any other doubt. You can ask a direct question to me on this forum, following the below link.https://urldefense.com/v3/__http://www.ChatDoctor .com/doctors/ Chat Doctor. Thank you </s>