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OnychomycosisOnychomycosis – General InformationOnychomycosis it is a fungal infection that affects the toenails or the fingernails. It may involve any component of the nail unit, including the nail matrix, the nail bed, or the nail plate. If the problem is caused by a bacterium, the condition is called paronychia. The disease is not life threatening, and it can cause pain, discomfort, and disfigurement and may produce serious physical and occupational limitations. The principal fungi that cause Onychomycosis are trichophyton rubrum and trichophyton mentagrophytes. They are called dermatophytes, because that these fungi infect hair, skin, and nails, and feed on keratinized tissue, in this case, the nail. The infections they cause are usually on the nails, but, in some cases, spread to the skin surrounding the nail. Another type of Onychomycosis is caused by yeast, such as candida albicans or candida parapsilosis. These infections are not commonly encountered and produce similar symptoms. While the fungus can be obtained from everywhere, it is not so contagious. Nail fungus is common and can be found on eight of ten people. It can be transmitted from person to person, but only with constant intimate contact. Men are more often affected than women and usually later in life, after the age of 40. Because nail fungus causes only half abnormal appearing of the nail, it is hard to tell the difference between different causes of the discolored nails. This type of fungus is not always treatable, and treatment failures and recurrences are common.Onychomycosis – SymptomsOnychomycosis is a fungus which is divided into subtypes, which can be identified based on symptoms. In distal lateral subungual fungus the nail plate is thick and opaque, the nail bed near the nail thickens and hardens, called nail bed hyperkeratosis, and the nail separates from the bed underneath (onycholysis). The nail is usually discolored and can have tones of brown. In endonyx Onychomycosis, the nail plate has a white discoloration, but the nail does not separate from the bed, not onycholysis. The area under the nail does not become thicken or harden. White superficial fungus is usually characteristic to the toenails. Small white powdery patches appear on the surface of the nail plate. The nail becomes rough can crumble easily. In proximal subungual fungus, an area of white surface, or discoloration, called leukonychia, develops near the nail fold and extend to deeper layers of the nail. The nail plate becomes white near the cuticle and remains normal at the end. Candidal infection occurs in the toenails and the fingernails. The nail fold becomes inflamed and it is called erythematous, or the nail plate separates from its bed, called onycholysis. The nail bed thickens and hardens, causing nail bed hyperkeratosis, and inflammation of the nail fold gets in chronic mucocutaneous disease, also called the disease of mucous membrane and regular skin. The affected fingers or toes look rounded on the ends and, sometimes, the entire thickness of the nail becomes infected. In total dystrophic fungus, the nail is thickened, opaque, and yellow-brown. The entire nail plate and matrix are affected.Onychomycosis – TreatmentOnychomycosis is very difficult disease to treat because nails grow slowly and have very little blood supply. In the past few years, technology has developed a new serial of medications including oral, taken by mouth, and topical, applied on the skin and nail surface. But, even with these new medicines, there is a high rate of recurrence, and the treatment is expensive, has also certain risks. Topical antifungals are medicines applied directly on the skin and nail area that kill fungus. Topical medicines should only be used if less than half the nail is involved or if the person with the disease cannot take the oral medicines. Medicines include amorolfine (approved all over the world), olamine, or Penlac, which is applied like nail polish, sodium pyrithione, bifonazole or urea, propylene glycol-urea-lactic acid, imidazoles, such as ketoconazole, or Nizoral Cream, and allylamines, such as terbinafine or Lamisil Cream. Due to the fact that they cannot penetrate the nail deeply enough, the medicaments are limited and generally unable to treat Onychomycosis. Topical medicines may be useful as additional therapy in combination with oral medicines. Oral antifungal medicines are more effective because they go through the body to penetrate the nail plate in the first days of starting the therapy. The oral antifungal drugs terbinafine, Lamisil Tablets, and , or Sporanox Capsules have replaced older therapies, such as griseofulvin, in the treatment of the disease. They offer shorter treatment periods, oral antifungal medications usually are administered in a three months medicine trail, higher cure rates, and fewer side effects. These medications are very safe, and have few contraindications, conditions that make taking the medicine inadvisable, but they should not be taken by patients who suffer with liver disease or heart failure. Before prescribing one of these medications, doctors have to make a blood test to make sure the liver is functioning properly. The most commonly side effects include nausea and stomach pain. One of the medicines used to treat Onychomycosis is fluconazole, which is not considered a treatment for the disease but is an alternative to itraconazole and terbinafine. Topical and surgical treatments can be applied in combination with oral antifungal treatment to decrease the side effects of the oral therapy. Nail surgery is not recommended usual procedure for the treatment of Onychomycosis. This is considered to be a painful and disfiguring procedure that should be reserved for isolated cases when there are either contraindications to use of systemic antifungals, or the patient has a resistance for antifungal treatment. Surgical approaches to this type of disease treatment include surgically or chemically removing the nail, the nail avulsion called also matrixectomy. Removing the nail plate, fingernail or toenail, is not effective treatment on its own. A combination of oral, topical, and surgical therapy can increase the effectiveness of treatment and reduce the cost of ongoing treatments. There are also the home remedies, which can be considered in the treatment of Onychomycosis. These include soaking the nail in vinegar, or baking soda. And, for all the affected patients, lots of attention to the local nail hygiene is essential. |
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