Welcome in H.C.M.
I have gone through your query and after considering the developments it appears that you are having acute pharyngitis
with some skin problems in your thigh and tip of penis.
The sore throat
you are having is most of the time is viral and at the same time your burning on thigh and tip of penis may be viral or allergic.
You may take-
1- Tab Paracetamol
2- Anti allergic like Fexofenadine
3- Warm saline gargling.
I hope this will help you otherwise consultation with physician will be necessary.