###Human: What is the yellow powdery discharge from armpit area after waxing? ###Assistant: Hi. Yes, it is a condition in certain individuals that is called as trichomycosis axillaris. It is due to bacteria the coryneform bacteria and yellow color thing is their colonies. You need antibacterial not antifungal agents. And antiperspirant is the recommended treatment for this condition. Apply topical Aluminum chloride over it. Tricomycosis axillaris. Tablet Erythromycin 500 mg QID. Apply Aluminum chloride antiperspirant over the area. Maintain hygiene of area, wash with soap and water, avoid using Dettol and other irritants.