The Effect of Most Antibiotics on Birth Control. A 2011 Harvard study4 looked at oral birth control failure rates between females who took antibiotics in the four weeks before conception and those who did not. The study included more than 43,000 females taking antibiotics and oral contraception simultaneously.
Myxoid cysts are common and are more common in women and the elderly. These lesions occur more frequently on the fingers than on the toes. The most common location for myxoid cysts is the fingers. They are usually found near the base of the nail, slightly off to one side or the other.
Small cysts that grow near or on the cuticles may arise with arthritis. These are benign and best addressed by a hand surgeon. 4. Psoriasis. This common skin condition is usually characterized by scaly, red patches, but it can also impact fingernails and toenails, Dr. Poblete-Lopez says.