What do I do if I think I have an STD?Created OnMarch 14, 2018byhowbeck Print You are here: Main FAQs What do I do if I think I have an STD? ← All Topics If you suspect you have an STD (Sexually Transmitted Disease) or if you have had it confirmed by your GP, you can call 0300 323 1300 to make an appointment at a local clinic.The clinics and their opening times can be found here.