"To effectively moisturize a dry scalp, it's important to use a gentle, sulfate-free shampoo (two to three times per week), avoid hot water, and incorporate hydrating treatments like scalp oils or ...
Allergic reactions to shampoo can cause symptoms like redness, itching, swelling, and blisters on the scalp or neck. In some cases, a more severe reaction like anaphylaxis or hives may occur. Common ...