Thanks for your query.Based on the facts that you have posted it appears that you have what is termed as Ringworm Infection in the groin.(Jack Itch).
Please take anti fungal medication
like Flucanozole orally twice daily along with topical anti fungal ointment like Meconazole for local application over affected area.
Wash your inner wares in boiling hot water mixed with antiseptic solution like Dettol
The red spots on your glans penis
are due to allergic reaction
to chemicals used in condoms .
Please change the brand of the condoms preferably to non lubricated condoms.