Approximately 90 per cent of the people affected by Alopecia undergo the re-growth of hair after taking the correct treatments. There are numerous approved medicines that prove beneficial at enabling a temporary growth of hair after the occurrence of this disease. Corticosteroids are the most prescribed anti-inflammatory drugs that produce the hormone called cortisol inside the body. This hormone significantly suppresses the immune system which further aids in treating this auto-immune disease. Similarly, other medicines include, Minoxidil, Anthralin, Sulfasalazine and much more. These medicines can be taken in form of oral pills, local injections as well as topical ointments. Local injections are injected right into the hairless spot for best results. This injected medicine consequently works at relieving the pain, discoloration of the patches, and encourage hair re-growth. Oral forms of medicines, especially of corticosteroids, are used for the treatment of severe form of this disease. As a caution, this medicine should be consumed as per the recommended dosage as it is associated with various side effects like hypertension, cataracts et al.  

Further, there are numerous topical sensitizers available in the market that work wonders at treating the bald areas. However, these sensitizers when applied directly on the patch can trigger allergic reactions like scaling, itching and gradual hair-growth.