Please have your piggies seen by a vet.
There are two types of mites which can infest piggies.
Hay mites which come in on hay; and mange mites which they can always have in their skin but are usually kept in check by the immune system. If the immune system is under any stress then they can make their presence known.
Beaphar is not recommended as it is a low dosed pet shop product. It may temporarily suppress but we find it is too low dosed to actually cure and often owners find the mites returning.
Your piggies need a vet strength product, dosed for their weight and given in a course.
The course is three treatments each with two weeks between each treatment.
The treatments only kill the hatched mites so the first treatment kills the present mites. During the next two weeks the remaining eggs hatch which are then caught by the second treatment. The third treatment catches anything left behind.
In the case of hay mites it is also recommended to cut off their hair - you will see egg casings stuck to the hair shafts (usually around their back end).
Mange mites burrow into their skin.
Xeno 450 is the recommended product for adult piggies but I know there are supply issues so your vet may need to give you xeno 50. It is has a lower weight range than the 450 so you will need to use multiple pippettes per treatment per piggy to get the concentration right for their weight.
I’ve added a guide below to help with further information on treatment and disinfection
1 Double-checking the gender upon arrival
- Sexing
- Pregnancies and surprise babies
2 When to quarantine new companions?
3 Vet visits
- Health check/registration upon arrival
- Reclaiming vet cost for newly bought ill guinea pigs
4 Common illnesses in new guinea pigs
- Ringworm
- Respiratory infection (URI)
5 List of guinea pig...
they are indoor girls and kept spotless so i they must’ve come in via hay. I’ve treated them with beaphar but they are still scratching 
can anyone recommend a better treatment please?
