Shed will know more as I've never had to use it myself, but another source states this:
Spray soap on plants affected by aphids, scales and mites. ... A two percent solution, about five tablespoons of any soap in a gallon of water, will do, but insecticidal soap works best and is less likely to harm your plants. If you apply during flowering make sure to rinse with freshwater.
No seeds but may contain pollen so you want to pick them off gently. A wet paper towel to wet it down and wipe afterwards helps if the sac breaks. If you have lots you may want to look at harvesting.