###Human: I feel burning and itching sensations on my penis after sexual intercourse. Kindly advice. ###Assistant: Hello. I can understand your concern about your symptoms. Yes, you may be suffering from a sexually transmitted disease. And your picture says (attachment removed to protect patient identity) there is an infection, and I presume that you had unprotected sex. Cold can be of different reason, so we can think that aside if you worry about that too. Regarding cold with sore throat, fever, headache, chest pain, running nose if you can be able to review with blood reports then it will be easy for proper explanation and treatment. Regarding your penis, lab test- HIV rapid 4th generation (after two weeks do this test) and a swab from your infected region for herpes PCR (polymerase chain reaction). Hope I have answered your query. If you have further doubts, I would be happy to help you.