How can I fix my dry scalp?
Coconut

oil is also the most effective remedy for dandruff. According to a Maryland-based dermatologist in the United States, scalp oil helps prevent dryness in the scalp. Apply lightly like a hand massage and then leave it on for 15 to 20 minutes. The longer the oil lasts, the better. Some people leave coconut oil on their head all night and wrap it in a cloth or towel.
Apple cider vinegar

Apple cider vinegar has a high pH which prevents dryness of the scalp. But instead of applying vinegar directly to the scalp, first add half the amount of water and lighten the intensity. Then apply the mixture gently on the scalp. After 15 minutes, wash your head with a good shampoo. The drought will be over in a week.
Aspirin

Aspirin tablets are found in every home and contain salicylic acid which is capable of relieving dryness. Crush a few tablets of aspirin into a powder and mix it with water to make a paste and apply it on the roots of the scalp. You can also wash your head with shampoo if you wish.