Ketoconazole shampoo is prescribed to treat tinia versicolor, or a fungal infection, according to the U.S. National Library of Medicine. This type of fungal infection can be identified by brown or light colored lesions on the torso or the legs. Ketoconazole shampoo is effective because it slows the growth of fungus. There is the potential for side effects with this product. In some cases, you may be allergic to ketoconazole shampoo.
Visible Side Effects
Physical side effects of ketoconazole shampoo include hives, a rash, dry skin, blistering, peeling or redness in the affected area. These symptoms are sometimes associated with a mild sensitivity to the medication. They can also be linked to an allergic reaction. If you see these signs, discontinue the shampoo and contact your doctor.
Other Allergic Reactions
Besides physical identifiers, an allergic reaction to ketoconazole may make breathing or swallowing difficult. Depending upon the severity of the allergy, anaphylactic shock may occur. According to Mayo Clinic, anaphylaxis is a severe allergic response to a stimulus. Signs of anaphylaxis present themselves as rapid pulse, nausea, dizziness and constriction of airways. This type of allergic reaction requires immediate medical attention, as it can be fatal. According to Drugs.com asthmatic patients may be more sensitive or allergic to sulfites. Ketoconazole shampoo contains sulfites. Inform your doctor if you have asthma and have been prescribed this shampoo.
Discomfort or Pain
Itching, irritation or stinging that occurs in the affected area are not necessarily signs of an allergy. These symptoms are listed as side effects commonly associated with ketoconazole shampoo. Regardless, you should contact your doctor to confirm that these side effects are not dangerous and they are just a result of a sensitivity to the medication. Tenderness, swelling, warmth and pain in the area are more serious side effects. They can indicate an allergy or a dangerous sensitivity to the medication. Discontinue using the product if these symptoms occur.
