Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice.

Itchy red rash especially on groin could be fungal infection (Tinea). Do apply an antifungal cream such as Sertaconazole but make sure that it does not contain any corticosteroid (avoid using combination creams). Keep the area dry by applying clotrimazole dusting powder. Avoid tight fitting and wet clothes. You can continue the above treatment for 2 weeks. Do consult your Dermatologist, if you do not get any response even after 2 weeks.

Hope I have answered your query. Let me know if I can assist you further.

Regards,
Dr. Siva Subramanian.

Hi,

Your symptoms are pointing towards allergic reaction and if it is severe after shower then it is pointing towards reaction to any soap, detergent, shampoo etc or any other things you are using for a bath like a body shampoo etc.

Rash in the groin can be due to fungal infection or jock itch. However, a clinical examination and a blood test to rule out allergies are also needed to be done for confirmation.

So the best way to know what exactly it is you should consult an Emergency room and get evaluated, An allergy test can be done to rule out the exact cause of the symptoms.

For now, you can take anti allergic medicine like Fexofenadine or Levocetirizine and apply Caladryl lotion or Benadryl cream over the bumps and itchy areas. In the groin area, you can apply Lotrimin ointment.

Try using hypoallergic soap and other constituents during bath. Do cool compresses or ice packs to reduce inflammation.

Hope I have answered your query. Let me know if I can assist you further.