How to treat that itchy area and that skin condition

Based on your description, it sounds like you might be dealing with a fungal infection, possibly something like ringworm or a yeast infection which can lead to itchy, white, or scaly patches on the skin, especially in warm, moist areas like near the groin and thighs. Start by keeping the affected area clean and dry as much as possible since moisture can exacerbate the infection. You can try an over-the-counter topical antifungal cream or ointment, such as clotrimazole or miconazole, applying it according to the package instructions for generally about 2-4 weeks. Be sure to wash your hands before and after application to prevent spreading the infection. Change your undergarments regularly and avoid tight-fitting clothing which can irritate the area further. Itching can be quite troublesome, so consider using an over-the-counter antihistamine to alleviate the itchiness. However, if symptoms persist beyond two weeks or worsen, it’s important to consult a healthcare provider for a more accurate diagnosis. They may need to prescribe a stronger medication or explore other causes, including dermatitis or psoriasis, depending on how the area looks. If you notice any signs of infection like pus, increased redness, or if it becomes painful, seeking medical advice sooner would be prudent to prevent complications. Always avoid scratching the area, as it might lead to secondary bacterial infections.