Terbinafine hydrochloride cream is used to cure certain fungal infections. It can reduce burning and itching caused by athlete's foot and ringworm according to Drugs.com.
The over-the-counter medication should be used as directed on the label. It should only be used by people ages 12 and up, according to the National Institutes of Health. Side effects are rare, but if a user experiences difficulty breathing, a tightness of the chest or swelling of the face, lips or throat, he or she should seek immediate medical attention. If the medication does not cause an improvement in the infection, the person should contact their doctor.