Secondary service connection is the path veterans most often leave on the table. The rule in 38 CFR 3.310 is simple: a disability that is proximately due to, the result of, or aggravated by a service-connected disability is itself service connected. The skin sits downstream of a great deal of what the VA already compensates.
The medication pathway
Many drugs prescribed for service-connected conditions have documented dermatologic effects. Long-term corticosteroids thin the skin and cause easy bruising and striae. Some drugs cause photosensitivity, so ordinary sun exposure produces exaggerated burns. Others are associated with drug eruptions, acneiform rashes, or worsening of existing psoriasis.
The claim is not built on a general statement that a drug can affect skin. It is built on the specific chain: the veteran takes drug X for service-connected condition Y, the skin condition began or worsened during that treatment, the timing and presentation fit the known effect, and the provider explains why other causes are less likely.
The condition pathway
Sometimes the service-connected disability itself, not its treatment, is what affects the skin. Common patterns include:
- Venous insufficiency or circulatory impairment producing chronic stasis dermatitis of the lower legs
- Diabetes producing skin infections, chronic fungal involvement, or slow-healing wounds
- An amputation or prosthesis producing chronic friction dermatitis and skin breakdown at the interface
- A service-connected mental health condition documented to trigger or worsen flares in an inflammatory skin disease
- Scarring and skin changes as residuals of surgery for a service-connected condition
Our feet and lower legs series covers the circulatory and gait-related claims, and the mental health series covers the underlying psychiatric conditions.
Where veterans start
Every case is different, and there is no obligation at any step. When veterans want to understand what their records actually support, these are the two most common starting points:
- Medical records review
A licensed physician reviews your records for a $250 flat fee and identifies which conditions the available evidence may support. The fee is refunded in full if nothing supportable is identified.
- Nexus letter
When the records support one, a licensed provider writes the medical opinion that addresses the link between your condition and your service or an already service-connected disability.
What the opinion has to establish
A secondary opinion carries a heavier burden than a direct one, because it must connect three points rather than two. A sound opinion identifies the service-connected disability and its treatment by name and date range, states the current skin diagnosis, explains the mechanism in medical terms, addresses the timing, and considers and rules out the competing explanations a VA reviewer will raise - age, genetics, occupational exposure, or an unrelated dermatologic condition.
Where the theory is aggravation rather than causation, the opinion should also describe the baseline severity before the aggravation began, since that baseline determines how much of the current disability is compensable. Our guide to secondary service connection covers the general rules, and what a nexus letter is covers the format.
Rating the secondary condition
Once granted, the skin condition is rated on its own merits under 38 CFR 4.118, using the same criteria as a direct claim. See the eczema and dermatitis guide, the psoriasis guide, or the scar guide depending on the diagnosis, and the combined ratings table in 38 CFR 4.25 for how the new rating affects the overall percentage.
Before you file
Pull the complete prescription history for the service-connected condition, including start dates and dose changes, and line it up against the dermatology record. When the two timelines match, the claim largely writes itself. When they do not, that mismatch is what the opinion has to explain.
Our guide to medical evidence in VA disability claims covers what records carry weight and how they are weighed.
Frequently asked questions
Can I get VA disability for a skin condition caused by my medication?
Yes. Under 38 CFR 3.310, a condition caused or aggravated by treatment for a service-connected disability can be service connected secondarily. The claim needs proof of the underlying service-connected condition, a current skin diagnosis, and a medical opinion explaining how the medication caused or worsened it.
Does aggravation count, or does the medication have to cause the condition?
Aggravation counts. 38 CFR 3.310(b) allows service connection for the measurable worsening of a non-service-connected condition by a service-connected disability. The opinion should describe the baseline level of the skin condition before the aggravation and the level after.