Anti-Fungal Shampoos

• There are anti-fungal shampoos made to treat fungus that appears on the scalp. For example, according to Medline Plus, seborrheic dermatitis, a type of scalp problem, may be caused by a fungus called malassezia, though other factors may contribute as well. Scalp ringworm---caused by a fungus called dermatophytes---is another type of scalp problem.
  
  

Seborrheic Dermatitis

• Anti-fungal shampoos can be used to treat seborrheic dermatitis, a scalp problem marked by dandruff and scaly, reddened skin that is itchy and sometimes sore. You can purchase these shampoos over the counter. According to the Mayo Clinic, your choice should include ketoconazole, ciclopirox, tar, pyrithione zinc, selenium sulfide or salicylic acid. The Mayo Clinic recommends shampooing with anti-fungal shampoo once a day, then cutting back to a couple of times per week once symptoms start improving.
  
  

Scalp Ringworm

• According to WebMD, over-the-counter anti-fungal shampoos that contain selenium sulfide or ketoconazole, used two or three times per week, can help to treat scalp ringworm. However, they aren't effective by themselves; see your doctor for a prescription anti-fungal medication.
  
  

Other Uses

• Besides shampooing the hair and scalp, anti-fungal shampoos may be good for treating seborrheic dermatitis that develops under the eyebrows. They may even be useful for treating jock itch, an itchy rash that forms in the groin area. According to MedicineNet.com, using a shampoo that contains ketoconazole or selenium sulfide to wash the groin may help in treating some cases of jock itch.
  
  

Diagnosis and Help

• See your doctor before using an anti-fungal shampoo. This will ensure a fungus is causing your scalp condition. If a fungus is not at fault, your doctor can then treat you appropriately. If you do not experience improvement after several weeks, return to your doctor. You may have a stubborn case that requires a prescription shampoo.