Skin rashes might present as redness, swelling or raised bumps on your body. At times these rashes or skin irritations can show up on the bottom of your feet. The skin rash could have several causes, including allergic reactions or other skin conditions.
Dermatitis
According to MayoClinic.com, many different forms of skin dermatitis can cause rashes or bumps on your body. For example, contact dermatitis is usually the result of touching a strong skin irritant like a household chemical or poisonous plant. Dermatitis found on the feet may be the result of another medical condition or fungus, otherwise known as athlete's foot. Dermatitis can cause itching and discomfort in the affected area.
Syphilis
Tiny bumps or excessive redness on the bottom of your feet can also be a symptom of syphilis. According to the University of Iowa, the second stage of syphilis starts when one or more areas of the skin break into rash that appears as rough, red or reddish brown spots on the bottom of your feet. Similar rashes can also appear on your palms. As the website suggests, these rashes tend to clear up with or without treatment after a few days.
Psoriasis
Another skin condition that can cause redness or bumps on the bottoms of your feet is psoriasis. MayoClinic.com describes this condition as a common skin disease that affects the life cycle of skin cells. When these cells build up rapidly on the surface of the skin, redness or scales can result. In extreme cases these scales will become painful, especially when left untreated for prolonged periods. For most people, however, psoriasis is more of an unsightly nuisance that a risk to health.
Treatment
Treatment for most skin rashes or irritations consists of applying a topical skin ointment or lotion to the affected area daily. According to MayoClinic.com, your doctor might recommend a skin lotion that contains a steroid to help reduce swelling or redness in extreme skin conditions. Oral medications are also available through your doctor that might have similar treatment results.
Prevention/Solution
Washing your skin regularly is effective in preventing the onset of skin irritation or contracting a skin disease from another source. Regular bathing or showering will typically be sufficient, however be sure to wash your hands immediately after handling a known skin irritant, such as plants or chemicals.
