There are a number of cost-effective and easy-to-apply home treatments for a dry scalp, such as crushing up aspirin and mixing it in with normal shampoo. Aspirin contains salicylic acid, which is also found in most medicated anti-dandruff hair products.
Rubbing a wet scalp with baking soda is an effective long term solution for treating a dry scalp, as the baking soda encourages the hair to produce more oils with repeated application. It also prevents fungal growth, although hair may become more dried out than usual for a week or so before it ramps up oil production.
Tea tree oil can easily be added to normal shampoo, and a few drops can help improve the condition of a dry scalp.
Coconut oil can be rubbed into the scalp and left to settle for around an hour. The oil should then be rinsed out with shampoo as normal. This treatment is one of the most well-known and effective home remedies for treating a dry scalp.
Daily application of lemon juice to the hair and scalp can quickly repair a dry scalp. The lemon juice should be massaged into the scalp and hair before being rinsed with water. The natural acids in the lemon juice not only remove a dry scalp, but help protect against further outbreaks by balancing pH levels.