My penis head is dry but no symptom of STD

Ive had protected sex a few weeks back and immediately the day after my penis head started to get dry. Im umcircumsized but there is no discharges or bumps or soreness when i pee. Could anyone help me and let me know what this could be im very concerned and wondering. Its like my foreskin and penis is dry

I forgot to add that it seem like its a mild burn down there as well

It's hard to say without a pic.  This should help you add images:

https://patient.uservoice.com/knowledgebase/articles/402861-how-do-i-add-an-image-to-my-post

If you're using a phone or tablet, you may need to choose the desktop/PC option in your browser.

Could just be balanitis though.  If it is, then these links may help:

https://patient.info/health/balanitis-leaflet

https://patient.info/doctor/balanitis-pro  (written for doctors)

If it's balanitis, then it will probably clear up by itself, but washing (with water, no soap), daily and after taking a leak and washing after masturbation or sex will probably help, and you could also try Canesten cream.