Persistent rashes for 15 days despite oral medications and injections need a proper dermatological re-evaluation rather than repeated symptomatic treatment. The cause may be allergic, infectious, inflammatory, or medication-related, and diagnosis often requires a detailed history, examination, and sometimes blood tests or skin evaluation.
Next Steps
Please avoid self-medication and share clear photos of the affected areas along with details of the medicines taken so far. Consult online for follow up.