I found this on a website, hope it helps.
In cases of simple bruising of the sesamoids or when strain of the sesamoid ligaments is suspected, twice daily applications of mild topical anti-infammatory lotions for 7-10 days may help reduce the inflammation and provide relief of pain and lameness, allowing return to full training. Applying a cooling bandage or cold pack overwrapped with Vetrap tape after exercise, or cold hosing for 10 minutes, may help reduce inflammation of low grade ligament tears. Consult your vet for advice.
In the early stages of sesamoiditis, control of inflammation and re-establishment of normal blood flow is important to prevent internal changes to the bone. The horse should be rested as much as possible and specialised therapy commenced. Pin-firing and blistering are no longer recommended.
When demineralisation and channeling of the bone is present, clinical studies in early cases indicate that treatment with Isoxsuprine provides long term relief of the pain and inflammation. A 3-4 week course is recommended, and in many cases horses are able to resume light work in 7-10 days, and full work in 3-4 weeks. Where fractures are present your vet will advise the best course of treatment and management.
Supplementation with calcium will provide the building blocks for bone mineralisation, particularly if horses are on high grain (low calcium) diets.
"The horse you get off is not the same as the horse you got on; it is your job as a rider to ensure that as often as possible the change is for the better."