This reaction is quite common and often represents a mild sun sensitivity. For immediate relief from redness and itching, you can apply a mild over-the-counter topical hydrocortisone cream (1%) to the affected areas for a few days. Taking a daily non-drowsy oral antihistamine, such as cetirizine or loratadine, can also help reduce the allergic response. To soothe the skin, you can use calamine lotion or pure aloe vera gel. Moving forward, prevent flare-ups by wearing protective clothing and consistently applying a broad-spectrum sunscreen with SPF 30 or higher containing physical blockers like zinc oxide or titanium dioxide. Please consult a doctor if symptoms persist.

Itching on your breast and neck is often caused by contact dermatitis (from soap, laundry detergent, or clothing), eczema, or a mild fungal infection. For immediate relief, you can apply an over-the-counter 1% hydrocortisone cream or a soothing calamine lotion twice daily, and take an oral antihistamine if needed. Avoid scratching, wear loose cotton clothing, and use fragrance-free moisturisers. If the itch persists, or if you notice redness, swelling, warmth, scaling, or any changes in the breast skin (like dimpling), please consult a healthcare provider for a proper physical examination.