Nummular Dermatitis

Stuart Millar Updated by Stuart Millar

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We recommend reading these general instructions on how to use SmartLotion®: Click here.

Stinging can occur when first applying SmartLotion®. For instructions on how to reduce the stinging, please click here.


Small, scaly, coin-shaped rashes or sores that may ooze, itch and crust over. Can occur anywhere on the body. Can resemble ringworm or psoriasis.


Dr. Harlan typically treats his adult patients for nummular dermatitis by having them apply SmartLotion® 2-3x per day for up to 4 weeks.

As long as the patient sees improvement during the initial 4 weeks, after 4 weeks he typically recommends tapering down to 2x per day for 2 weeks then to 1x per day for 2 weeks. The rate of tapering should vary based on how quickly the rash is healing.

Dr. Harlan says that moisturizing 2x per day is a must for nummular dermatitis patients, regardless of whether a rash is present or not. If the patient does not see improvement within the first 4 weeks, he will prescribe them a stronger treatment for 3 weeks to help with initial control and recovery before switching back to SmartLotion®.

For a list of Dr. Harlan's recommended moisturizers, click here.


Dr. Harlan also tells his patients that it is critical to keep moisturizing at least 2x per day, even if no rash is present.

To prevent nummular dermatitis outbreaks, Dr. Harlan tells his adult patients to maintain a routine of applying SmartLotion® 1x per day.

Some patients require intervals of 2x and 1x every other day SmartLotion® applications for complete flare-up control. Some patients require 1 application per day, and some only require 3 applications per week.

This is why long-term safety was so important to Dr. Harlan when he formulated SmartLotion®. For whatever maintenance schedule his patients require, he wanted to ensure that there would be no chance of side effects. Rest assured, SmartLotion® is 100% safe for long term use, as demonstrated in his peer-reviewed safety study.

To read Dr. Harlan's peer -reviewed safety study, please click here.

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