Skin diseases and allergic reactions 

Erysipelas is an acute superficial bacterial infection involving the upper dermis and superficial lymphatic vessels. It is most commonly caused by Streptococcus pyogenes (Group A Streptococcus) and other β-hemolytic streptococci without pus formation, although Gram-negative bacilli may occasionally be responsible, particularly in immunocompromised patients.

Abscess is a collection of pus caused by Staphylococcus aureus.

Folliculitis is an infection of the hair follicles commonly due to Staphylococcus aureus

It is a fungal infection mainly caused by yeast, Candida albicans. Candidiasis is usually precipitated by prolonged use of contraceptive pills, AIDS, pregnancy, diabetes, prolonged use of antibiotics, corticosteroid use, and being on immunosuppressive treatment

It is defined as infection of the nail plate by fungus. Patients with diabetes or peripheral neuropathy may be at a higher risk.