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Thank you for the photograph. The reason why this red bump has not subsided for many months is because it may not be a pimple at all. The two main possibilities are Keratosis Pilaris and Actinic Keratosis.
Keratosis pilaris is a condition caused by microscopic scales occluding follicular orifices (hair follicle openings). The dots can be skin coloured, whitish or reddish. The condition is absolutely harmless and has a waxing and waning course. Actinic Keratosis is caused due to sun damage.Here is the treatment for Keratosis Pilaris
1. Retin-A cream
applied once a night over the most affected areas. Benefit usually takes 6-8 weeks of regular use.
2. Moisturizing cream with 10-20% urea
. Use a cream such as Urea care cream
) twice a day over the affected areas. You can combine it with Amlactin cream
, applying it 10 min after Amlactin.
3. Vitamin A 25,000 IU once a day after breakfast for 4 weeks.
4. Avoid soaps on the face. Switch to a soap free face wash (Nivea makes one)
NOTE: Retin-A cream will require a prescription. The rest can be bought over the counter.
Give this a try - if there is no improvement in 4 weeks then Actinic Keratosis is the likely diagnosis and this will need to be lasered off or treated with 5-FU or imiquimod cream
Hope this information is useful, please feel free to ask if you have any queries.