Dr. Riva Collins, MD

Canker Sores (Aphthous Ulcers) Treatment
Aphthous stomatis is the medical term for canker sores. It is a common condition that produces ulcers or erosions in the mouth and on the lips. It happens over and over again, but the cause is still unknown. It is thought to be secondary to a decreased immune system, possible from stress, infection, vitamin deficiency, or hormonal changes. Canker sores look like round shallow erosions or ulcers with a white surface, surrounded by an intense red halo and measuring 5mm. The ulcers are usually p...

Does the acne on my back and chest require different treatment from the acne on my face?
Truncal acne, which refers to acne that occurs on the trunk of the body (such as the chest and back), may require a slightly different treatment approach than facial acne. This is because the skin on ...

How long does it take for a tattoo to disappear after laser tattoo removed?
The length of time it takes to remove a tattoo depends on several factors, including the size, location, and color of the tattoo, as well as the individual's skin type and overall health.The most ...

What is atopic dermatitis?
Atopic dermatitis, also known as eczema, is a chronic, inflammatory skin condition that causes dry, itchy, and scaly skin. The condition is characterized by symptoms such as:Dry, itchy skin: The skin ...

What is the best brand of botulinum toxin to improve my appearance?
Botulinum toxin is a type of neurotoxin that is used for a variety of cosmetic and medical purposes. There are several different types of botulinum toxin available on the market, each with their own u...

What medications are used to treat acne?
There are several medications that can be used to treat acne, including:Topical retinoids (e.g. tretinoin, adapalene)Topical antibiotics (e.g. clindamycin, erythromycin)Topical benzoyl peroxideOral an...