Thank you for the quick reply.
The symptoms you have described of bright red very itchy rash in the thigh creases since last 2 days is most likely because of fungal infection.Typically the groin becomes itchy and irritable, mainly in the crease between the top of the leg and the genitals.
Also there can be superadded bacterial infection.These infections are very common in hot, humid environment as it leads to excessive sweating,the bacteria & fungus grow in these areas of body causing symptoms.
Apply ointment monistat.It contain Miconazole nitrate which is anti fungal agent.It is available at the counter without the prescription.Apply the cream to the surrounding 4-6 cm of normal skin in addition to the rash/itching area.Also apply antibiotic ointment ultramide or ointment polysporin.they are available as OTC(over the counter) at your pharmacy without prescription & will help you greatly.
And you need oral anti fungal medication like fluconazole (diflucan) or Itraconazole (sporanox).Antibiotics may need to be prescribed accordingly.
If still after this,the symptoms persists,then you need to make an appointment with your doctor as prescription oral medications will then be required accordingly.Usually & most likely,the symptoms gets cleared with these treatments.
Hope this helped.
Is there is anything else that you would like to know.I am happy to address your follow-up questions. Please use the REPLY BUTTON to reply back to me