The boils on your legs are likely a bacterial skin infection. Because your current steroid lotion (betamethasone) suppresses the local immune response, it can worsen infections, so you should stop applying it on or near these boils. You may continue using the soothing calamine lotion on other irritated, non-infected skin. To treat the boils, apply warm compresses for 10 to 15 minutes daily to help them drain naturally, and do not squeeze them. You can apply a topical antibiotic ointment like mupirocin. However, since you have multiple boils, please consult a doctor promptly, as you may require oral prescription antibiotics to safely clear the infection.

For dry, itchy skin, I recommend using a thick, fragrance-free moisturising cream or ointment containing ceramides, hyaluronic acid, or colloidal oatmeal (such as CeraVe, Cetaphil, or Aveeno) immediately after bathing. For active itching, you can apply an over-the-counter 1% hydrocortisone cream or a lotion containing pramoxine hydrochloride to the itchy areas twice daily. Avoid hot showers, harsh soaps, and scratching, which worsen irritation. If the itching is severe, keeps you awake, or your skin becomes red, swollen, or painful, please consult a doctor for a proper evaluation and potential prescription treatments.